#  @coderarmy9 Coder Army Coder Army posts on YouTube about army, javascript, tutorial, what is the most. They currently have [-------] followers and [---] posts still getting attention that total [------] engagements in the last [--] hours. ### Engagements: [------] [#](/creator/youtube::UC-QLxQ7cFp-3CFnSZO6oXXw/interactions)  - [--] Week [------] +2.30% - [--] Month [-------] -14% - [--] Months [---------] +51% - [--] Year [---------] +320% ### Mentions: [--] [#](/creator/youtube::UC-QLxQ7cFp-3CFnSZO6oXXw/posts_active)  - [--] Month [--] +3.50% - [--] Months [--] +25% - [--] Year [---] +407% ### Followers: [-------] [#](/creator/youtube::UC-QLxQ7cFp-3CFnSZO6oXXw/followers)  - [--] Week [-------] +0.86% - [--] Month [-------] +2.60% - [--] Months [-------] +20% - [--] Year [-------] +39% ### CreatorRank: [-------] [#](/creator/youtube::UC-QLxQ7cFp-3CFnSZO6oXXw/influencer_rank)  ### Social Influence **Social category influence** [technology brands](/list/technology-brands) [stocks](/list/stocks) [finance](/list/finance) [countries](/list/countries) [social networks](/list/social-networks) [travel destinations](/list/travel-destinations) **Social topic influence** [army](/topic/army) #740, [javascript](/topic/javascript) #128, [tutorial](/topic/tutorial), [what is](/topic/what-is) #3362, [the most](/topic/the-most), [build](/topic/build) #4866, [code](/topic/code) #5070, [how to](/topic/how-to), [this is](/topic/this-is), [level](/topic/level) #3610 **Top accounts mentioned or mentioned by** [@rohit_negi](/creator/undefined) [@media](/creator/undefined) [@vitejspluginreact](/creator/undefined) [@keyframes](/creator/undefined) [@codewithzame](/creator/undefined) **Top assets mentioned** [Alphabet Inc Class A (GOOGL)](/topic/$googl) ### Top Social Posts Top posts by engagements in the last [--] hours "Euler Path and Euler Circuit in a Graph Graph Data Structure Graph Theory Graph in DSA #dsa #graph #datastructure What is Graphs in DSA and why do we need it. We talked about it with the help of real world example and it will help everyone to get command over graphs. Day 17/60 of challenge. 1: Euler Path: https://www.geeksforgeeks.org/problems/euler-circuit-and-path/1page=3&difficulty%5B%5D=1&category%5B%5D=Graph&sortBy=submissions 00:00 Introduction 00:46 Intro to Euler Path with Story 3:48 Understanding Euler Circuit 18:21 Whether Euler Circuit/Euler Path Exist or not 53:03 Code Part -" [YouTube Link](https://youtube.com/watch?v=3BJTw_OWvTU) 2024-06-20T00:30Z 235K followers, 14.3K engagements "Introduction To System Design Welcome to Lecture [--] of the Low-Level Design (LLD) Masterclass. Today is Day [--] for #8weeksLLdChallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this foundational session we'll cover: [--]. What exactly is Low-Level Design (LLD) [--]. How does LLD differ from Data Structures & Algorithms (DSA) [--]. Understanding the relationship and differences between DSA LLD and High-Level Design (HLD). Join Coder Army" [YouTube Link](https://youtube.com/watch?v=AK0hu0Zxua4) 2025-05-12T12:29Z 235K followers, 424.9K engagements "React JSX Babel React Components & Props Explained from Scratch ReactJS Full Course #2 Learn React the RIGHT way - no memorization just pure understanding In this video we dive deep into React fundamentals using a first-principles approach. Instead of just showing you "how" to write code we explain "why" things work the way they do. 🔥 What You'll Learn in This Video: ✅ JSX - What It Actually Is JSX is NOT HTML - proof with real examples Why className instead of class Why style is an object not a string Self-closing tags requirement JavaScript expressions inside ✅ Babel - The Transpiler What" [YouTube Link](https://youtube.com/watch?v=JdFUNKGwWLw) 2025-11-21T12:30Z 235K followers, 26.7K engagements "Build Google Docs A Real-World LLD Project Document Editor LLD Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Second week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we apply *LLD principles* using *OOPS* and *SOLID* design concepts to build a *Document Editor* think Google Docs but designed from scratch by you 💻 After teaching the" [YouTube Link](https://youtube.com/watch?v=MT9qZFGQXOU) 2025-05-20T12:30Z 235K followers, 63.9K engagements "CSS Box Model & Display Property Content Margin Padding Border CSS Full Course #02 Ready to understand why some HTML elements stack on top of each other while others sit side-by-side This is the tutorial that will finally make CSS layouts "click" for you Welcome to Part [--] of our CSS Full Course. In this deep-dive lecture we'll master two of the most fundamental concepts in all of CSS: the display property and the Box Model. First we'll uncover the critical difference between block and inline elements and why it dictates the entire flow of your webpage. You'll learn how to take control of this" [YouTube Link](https://youtube.com/watch?v=MluY-_FUxFI) 2025-09-10T12:30Z 235K followers, 37.3K engagements "OOPs Real-World Examples OOPs Pillars Abstraction Encapsulation Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Today is Day [--] for #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we dive into the *evolution of programming* and lay the foundation for mastering *Object-Oriented Programming (OOP)* a core pillar of Low-Level Design. *Whats Covered in This Video:* - Brief" [YouTube Link](https://youtube.com/watch?v=QbGoqAgP_zg) 2025-05-13T12:30Z 235K followers, 156.8K engagements "AVL Tree in Data Structure AVL Tree Insertion AVL Tree Search AVL Tree Rotation Trees AVL Tree Data Structure and Algorithm 180daysofcode #dsa #datastructures #leetcode 1: Insertion in AVL Tree: https://www.geeksforgeeks.org/problems/avl-tree-insertion/1itm_source=geeksforgeeks&itm_medium=article&itm_campaign=bottom_sticky_on_article 2: Deletion in AVL Tree: https://www.geeksforgeeks.org/problems/avl-tree-deletion/1itm_source=geeksforgeeks&itm_medium=article&itm_campaign=bottom_sticky_on_article 00:00 Introduction 01:32 Understanding AVL Tree /Limitations of BST 13:28 Understanding AVL Tree" [YouTube Link](https://youtube.com/watch?v=Sxb152a5Am8) 2024-03-18T00:30Z 235K followers, 82.1K engagements "ReactJS Full Course What is ReactJS React JS Tutorial for Beginners ReactJS Full Course #1 Welcome to the first episode of the only React JS course you'll ever need. If you've mastered HTML CSS and JavaScript but are tired of tutorials that just show you the 'how' without the 'why' you're in the right place. We're throwing out memorization and building a deep fundamental understanding of React from First Principles. In this first video we go back to the beginning. Before we write a single line of JSX we explore the core problem React was created to solve. We'll compare the old imperative way" [YouTube Link](https://youtube.com/watch?v=TkHH-IHsEKQ) 2025-11-19T12:30Z 235K followers, 82.8K engagements "JavaScript Variables & Data Types Explained(var let const mutable) Javascript Full Course #02 Are you ready to build a rock-solid foundation in JavaScript In this comprehensive one-hour lecture we go far beyond the basics of declaring variables. We take a deep dive into the "why" behind JavaScript's data types exploring the critical concepts of mutability immutability and how the JavaScript engine actually manages your data in memory. This is not a superficial tutorial. We'll explore the difference between var let and const from a technical perspective understand why primitives are immutable" [YouTube Link](https://youtube.com/watch?v=UXYJGHhuGA8) 2025-09-25T12:30Z 235K followers, 48K engagements "SOLID Design Principles Complete Guide with Code Examples In this video we dive deep into the SOLID Principles the foundation of scalable and maintainable software design. Whether you're a beginner or an experienced developer this guide will help you understand and master: *Introduction to SOLID Principles* *Single Responsibility Principle (SRP)* *Open/Closed Principle (OCP)* *Liskov Substitution Principle (LSP)* *Complete Code Examples Explained* Join Coder Army Whatsapp Group: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Code and Notes: Github :" [YouTube Link](https://youtube.com/watch?v=UsNl8kcU4UA) 2025-05-16T12:30Z 235K followers, 135.4K engagements "Make Your Website Responsive Media Queries Overflow Box Shadows explain CSS Full course #06 Ready to make your websites truly professional In this packed CSS tutorial we'll master three essential concepts that will elevate your projects: Responsive Design with Media Queries the overflow property and creating depth with box-shadow. This is Part [--] of our complete CSS course First we'll tackle the most critical skill in modern web development: making your layouts responsive. You'll learn how to use Media Queries to make your designs adapt perfectly to any screen size from a small mobile phone to" [YouTube Link](https://youtube.com/watch?v=Xv-gTGw4i_Y) 2025-09-16T12:30Z 235K followers, 25K engagements "Binary Search Tree: LCA of BST Find Common Nodes in [--] BST Check whether BST contains Dead End Trees Binary Search Tree Data Structure and Algorithm 180daysofcode #dsa #datastructures 1: Lowest Common Ancestor in a BST : https://www.geeksforgeeks.org/problems/lowest-common-ancestor-in-a-bst/1itm_source=geeksforgeeks&itm_medium=article&itm_campaign=bottom_sticky_on_article 2: Print BST elements in given range: https://www.geeksforgeeks.org/problems/print-bst-elements-in-given-range/1page=1&difficulty%5B%5D=0&category%5B%5D=Binary%2520Search%2520Tree&sortBy=submissions 3: Check whether BST" [YouTube Link](https://youtube.com/watch?v=YKo8QaW02z8) 2024-03-12T00:51Z 235K followers, 23.5K engagements "HTML Forms From Beginner to Advance HTML Full Course #04 Ready to finally master the most important interactive element of the web This is your complete one-hour masterclass on HTML Forms. We'll go from the absolute basics to building complex real-world registration and order forms covering every essential tag and attribute along the way. If you've ever been confused about the difference between id name and for or wondered how to create radio buttons dropdowns and file uploads this is the video for you. We don't just show you the tags; we explain why they exist and how they work together" [YouTube Link](https://youtube.com/watch?v=a4j9R_DvZ8M) 2025-09-05T12:30Z 235K followers, 52.5K engagements "Build a Complete Portfolio Website with HTML & CSS CSS Full course #09 Ready to build the most important project of your web development journey In this complete step-by-step tutorial we will build a professional and fully responsive personal portfolio website from scratch using only HTML and CSS. This is the ultimate project to showcase your skills to friends family and future employers We'll use modern CSS techniques like Grid and Flexbox to create a stunning two-column layout with a "sticky" sidebar just like the professional portfolios you see online. We'll implement a sophisticated" [YouTube Link](https://youtube.com/watch?v=dMD8ceVzdQs) 2025-09-22T13:30Z 235K followers, 64.7K engagements "SOLID Design Principles part [--] Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Second week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we dive deep into the remaining *SOLID Principles (LSP-examples ISP DIP)* the foundation of scalable and maintainable software design. Whether you're a beginner or an experienced developer this guide" [YouTube Link](https://youtube.com/watch?v=hU9koy6A2I0) 2025-05-19T12:31Z 235K followers, 65.6K engagements "Binary Search Tree in Data Structure Implementation Insertion Deletion and Search Trees Binary Search Tree Data Structure and Algorithm 180daysofcode #dsa #datastructures 1: Delete a node from BST: https://www.geeksforgeeks.org/problems/delete-a-node-from-bst/1page=1&difficulty%5B%5D=1&category%5B%5D=Binary%2520Search%2520Tree&sortBy=submissions 2: Search a node in BST: https://www.geeksforgeeks.org/problems/search-a-node-in-bst/1page=1&difficulty%5B%5D=-1&category%5B%5D=Binary%2520Search%2520Tree&sortBy=submissions 3: Insert a node in a BST:" [YouTube Link](https://youtube.com/watch?v=pMHXL46exp4) 2024-03-06T00:30Z 235K followers, 101.3K engagements "Lecture 78: Introduction To Linked List Traversal and Insertion in a Linked List Introduction to Linked List What is Linked List Singly Linked List Insertion in a Singly Linked List 00:00 Introduction to LinkedList 00:50 [--] crore Example for LinkedList 07:43 Example [--] - Array and Singly LinkedList 12:22 Defining LinkedList using Classes 15:25 How to create a Node 20:45 Operations on LinkedLists 21:58 Ways of Insertion on LinkedLists 31:32 Code Part - Creating LinkedList 33:39 Understanding Insertion at Start on LinkedList 43:45 Traversing On LinkedList 48:00 Code Part - Insertion On LinkedList" [YouTube Link](https://youtube.com/watch?v=CE150x4w0bo) 2024-01-15T00:30Z 235K followers, 359.3K engagements "Promises in Javascript JSON vs JS Object Javascript Full Course #19 Learn JavaScript Promises from First Principles This complete tutorial covers everything from basic async concepts to advanced promise methods. 🎯 What You'll Learn: ✅ What are Promises and why do we need them ✅ Understanding Asynchronous JavaScript ✅ The Callback Hell problem explained ✅ Creating and consuming Promises ✅ Promise states (Pending Fulfilled Rejected) ✅ Promise chaining - write clean async code ✅ Error handling with .catch() and .finally() ✅ Promise.all() Promise.race() Promise.allSettled() Promise.any() ✅" [YouTube Link](https://youtube.com/watch?v=LYe1my0KkPo) 2025-10-28T12:59Z 235K followers, 19.1K engagements "React useState Hook The Complete Guide for Beginners What is hooks ReactJS Full Course #4 Learn the useState Hook in React from absolute first principles This complete tutorial explains why useState exists how it works internally and how to use it effectively in your React applications. 🎯 What You'll Learn: Why normal JavaScript variables don't work in React components What useState hook is and why it's needed How React stores state internally Understanding re-renders and component lifecycle State updates are asynchronous - what this means Multiple setState calls and the updater function" [YouTube Link](https://youtube.com/watch?v=ctks8tizcco) 2025-11-28T12:30Z 235K followers, 12.5K engagements "Graph Data Structure Real world Example to Explain Graph Introduction to graph Graph Theory Graph in DSA #dsa #graph #datastructure What is Graphs in DSA and why do we need it. We talked about it with the help of real world example and it will help everyone to get command over graphs. Day 1/60 of challenge. 00:00 Introduction 1:25 Introduction to Graph 30:27 Types of Graph - Undirected and Directed Graph 37:23 Cyclic Graph and Acyclic Graph 39:58 Connected and Disconnected Graph 42:28 Complete Graph 44:58 Weighted and Unwieghted Graph 45:50 Outro Video will come on Mon-Fri at 6am in the" [YouTube Link](https://youtube.com/watch?v=gGlfzqPT-hE) 2024-05-15T00:30Z 235K followers, 143.3K engagements "JavaScript Functions Explained In-Depth Javascript Full Course #09 Ready to unlock the most powerful and fundamental building block in all of JavaScript In this complete in-depth guide we will master JavaScript Functions from the ground up moving from the absolute basics to the advanced concepts that professional developers use every day. We start from "first principles" explaining what a function is and why we need them with the DRY (Don't Repeat Yourself) principle. You'll learn the core anatomy of a function: parameters arguments and the return keyword. We'll demystify the different ways" [YouTube Link](https://youtube.com/watch?v=iY8LlFRLpXQ) 2025-10-07T12:30Z 235K followers, 23.9K engagements "Build Your Own Notification Engine System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Third week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we will walk through building a complete Notification System from scratch using Low-Level Design (LLD) principles. - What youll learn: - End-to-end architecture of a scalable" [YouTube Link](https://youtube.com/watch?v=t-4r2AsJz_Q) 2025-05-29T12:31Z 235K followers, 23.3K engagements "React Memo useMemo and useCallback Hook in React ReactJS Full Course #7 React Performance Optimization: Master React.memo useMemo & useCallback Hooks Complete Tutorial 🔥 Learn React optimization hooks from first principles This comprehensive guide covers React.memo useMemo and useCallback with real-world examples. 📚 What You'll Learn: ✅ React.memo - Prevent unnecessary child component re-renders ✅ useMemo - Cache expensive calculations and object references ✅ useCallback - Keep function references stable across renders ✅ When to use (and NOT use) these optimization hooks ✅ Common mistakes" [YouTube Link](https://youtube.com/watch?v=0-hl7me5dk4) 2025-12-20T10:30Z 235K followers, [----] engagements "CRUD Operation in DOM The Document Object Model (DOM) Explained Javascript Full Course #14 Ready to make your web pages interactive In this complete in--depth guide we will master the JavaScript DOM (Document Object Model). This is the crucial bridge that allows your JavaScript code to see change and react to your HTML content. If you want to become a frontend developer this is a topic you absolutely must know. We'll start from "first principles" explaining what the DOM is and why it's essential for all modern web development. You'll learn all the different ways to select any element on your" [YouTube Link](https://youtube.com/watch?v=2jVOkYiAl2s) 2025-10-15T12:31Z 235K followers, 19.3K engagements "React + Vite Complete Setup and Deployment npm Plugins node Bundlers ReactJS Full Course #3 Learn React with Vite from scratch This comprehensive tutorial covers everything you need to know about setting up a modern React development environment using Vite. 🔥 What You'll Learn: Complete React + Vite setup (both automated and manual) npm vs npx - Understanding the difference and when to use each How bundlers work and why you need them What Vite plugins do and why they're necessary esbuild vs Babel - Who converts your JSX and why Import/Export system in JavaScript Package.json deep dive" [YouTube Link](https://youtube.com/watch?v=2t8Zi2aw92E) 2025-11-24T12:30Z 235K followers, 15.2K engagements "Build Payment Gateway System System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army fifth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this lecture well design and implement a *Payment Gateway System* from scratch using Low-Level Design principles in C++ & Java. Youll see how to combine multiple design patternsStrategy Template" [YouTube Link](https://youtube.com/watch?v=36FDqIRBGRg) 2025-06-11T12:30Z 235K followers, 21.4K engagements "Javascript Full Course Introduction to JAVASCRIPT Javascript Full Course #01 Ever wondered why we can't just use a powerful language like C++ to build websites If you already know HTML and CSS why was it necessary to invent a whole new language called JavaScript In this deep dive we travel back to the dawn of the interactive web (around 1995) to uncover the critical reasonssecurity hardware limitations and accessibilitythat made C++ a non-starter for the browser and paved the way for JavaScript's domination. We'll look at real code examples that show just how dangerous C++ could have been on" [YouTube Link](https://youtube.com/watch?v=611_04Ml25c) 2025-09-23T12:30Z 235K followers, 102.8K engagements "JavaScript Conditionals Loops & Operators Explained Javascript Full Course #04 Ready to make your JavaScript code smart In this in-depth one-hour lecture we move from static variables to dynamic decision-making code. We'll master the fundamental building blocks of program logic: conditionals (if/else) loops (for) and the operators that power them all. But we don't just stop at the basics. We'll also uncover one of the most famous "gotchas" in all of programming: why [---] + [---] does NOT equal [---] in JavaScript (and most other languages). Understanding this floating-point precision issue is a" [YouTube Link](https://youtube.com/watch?v=7dMQr2-T--4) 2025-09-29T12:30Z 235K followers, 29.7K engagements "What is CSS (Cascading Style Sheet) Inline + Internal + External CSS CSS Full Course #01 Ready to transform your plain HTML pages into beautifully designed websites Welcome to your first step into the world of CSS This one-hour beginner-friendly crash course is the perfect introduction to Cascading Style Sheets the language that brings color layout and life to the web. We'll start from the absolute beginning explaining what CSS is and why it's a critical skill for any web developer. You'll learn the three essential ways to add CSS to your projectsInline Internal and Externaland understand the" [YouTube Link](https://youtube.com/watch?v=7rrUVevoECg) 2025-09-09T12:30Z 235K followers, 62.9K engagements "Async Await in Javascript Javascript Full Course #20 Are you using await outside of async functions You might be blocking your ENTIRE application without knowing it In this video I explain why top-level await can be a performance disaster and show you the RIGHT way to handle asynchronous code in JavaScript. TIMESTAMPS: The Problem - Code That Looks Right But Isn't What is Top-Level Await Live Demo - How It Blocks Everything Why This Destroys Performance 🔥 KEY TAKEAWAYS: ✅ Top-level await blocks your ENTIRE module ✅ Other code has to wait for your fetch to complete ✅ Your app becomes slower" [YouTube Link](https://youtube.com/watch?v=AyBpssNYB6g) 2025-11-10T12:30Z 235K followers, 13.4K engagements "Events in Javascript Even and Event handler in Javascript Javascript Full Course #15 Ready to master the core of web interactivity In this in-depth lecture we will demystify JavaScript Events going far beyond a simple click handler. You'll learn the fundamental concepts of Event Bubbling Event Capturing and the powerful Event Delegation pattern that professional developers use to write efficient scalable code. First we'll break down the three core components of any event: the target the event type and the event handler. We'll cover the modern and correct way to listen for user actions using" [YouTube Link](https://youtube.com/watch?v=CGjHpnm8TeE) 2025-10-16T12:30Z 235K followers, 17.8K engagements "Cascade & Positioning in CSS Static Relative Absolute Fixed Sticky CSS Full Course #03 Ever wonder how CSS decides which style wins when you have conflicting rules Or how developers create beautiful overlapping layouts and "sticky" navigation bars Welcome to Part [--] of our CSS Full Course where we unlock the "magic" behind CSS In this deep-dive tutorial we'll master two of the most powerful and often misunderstood concepts in CSS: the Cascade and the position property. First you'll learn the unbreakable three-step rulebookSpecificity Importance and Source Orderthat browsers use to resolve" [YouTube Link](https://youtube.com/watch?v=HwvOyrPDqhM) 2025-09-11T15:32Z 235K followers, 37.8K engagements "BFS Traversal in Graph DFS Traversal in Graph Introduction to graph Graph Theory Graph in DSA #dsa #graph #datastructure What is Graphs in DSA and why do we need it. We talked about it with the help of real world example and it will help everyone to get command over graphs. Day 3/60 of challenge. 1: BFS:https://www.geeksforgeeks.org/problems/bfs-traversal-of-graph/1page=1&difficulty%5B%5D=0&category%5B%5D=Graph&sortBy=submissions 2: DFS: https://www.geeksforgeeks.org/problems/depth-first-traversal-for-a-graph/1page=1&difficulty%5B%5D=0&category%5B%5D=Graph&sortBy=submissions Video will come" [YouTube Link](https://youtube.com/watch?v=Vtu7qgF0ksw) 2024-05-17T01:40Z 235K followers, 85.9K engagements "JavaScript Memory Management Explained: Stack vs Heap (First Principle) Javascript Full Course #03 Ever wonder what actually happens when you declare a variable in JavaScript Where does that data go Why are some operations fast and others slow The answer lies in the two "brains" of the JavaScript engine: the Stack and the Heap. In this in-depth lecture we'll demystify JavaScript memory management using first principles. Forget complex jargonwe'll use simple powerful analogies (like a chef's kitchen) to give you a crystal-clear mental model of how your code runs. Understanding the Stack and" [YouTube Link](https://youtube.com/watch?v=WRBFDQR0oM4) 2025-09-26T15:28Z 235K followers, 42K engagements "Lecture 49: Memory Management Static vs Dynamic Memory Allocation Pointers in C++ Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Day 67/180 #180daysofcode #180 hard We have made a whole video in c++ How to solve pattern print problem. We explained everything with the help of code. We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech revolution in our" [YouTube Link](https://youtube.com/watch?v=bLYuiCD0Sr4) 2023-11-30T00:30Z 235K followers, 30.8K engagements "10 JavaScript Projects for Beginners Learn JS by Building Real Apps Javascript Full Course #16 🚀 Master JavaScript by building [--] real-world beginner projects from scratch Perfect for anyone learning web development and JavaScript fundamentals. 📌 [--] JavaScript Projects You'll Build: [--]. ✨ Random Quote Generator - Display inspirational quotes [--]. 🎨 Background Color Changer - Interactive color switcher [--]. 💕 Love Calculator - Fun relationship compatibility checker [--]. 💰 Income Tax Calculator - Calculate taxes instantly [--]. Digital Clock - Real-time clock display [--]. Countdown Timer - Event" [YouTube Link](https://youtube.com/watch?v=dQDteO0RXrc) 2025-10-21T12:42Z 235K followers, 34.4K engagements "Mastering CSS Grid for 2D Layouts GRID in CSS CSS Full course #05 Ready to build complex two-dimensional webpage layouts with an unbelievably simple and powerful tool Welcome to Part [--] of our CSS Full Course In this comprehensive one-hour tutorial we will master CSS Grid. If you've ever struggled to create a layout with a header footer sidebar and main content this is the video that will change everything. We'll move beyond the one-dimensional limits of Flexbox and unlock the power of true 2D layout. You'll learn how to define your own grid with custom columns and rows and how to place any" [YouTube Link](https://youtube.com/watch?v=dn3q4iLCmrA) 2025-09-15T12:30Z 235K followers, 32.4K engagements "What is UML Diagrams Class & Sequence Diagrams with Real Examples Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Today is Day [--] for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this lecture we break down one of the most powerful concepts in Object-Oriented Programming *Inheritance and Polymorphism* with clear real-world analogies and practical code" [YouTube Link](https://youtube.com/watch?v=nPJyyO9pb5s) 2025-05-15T12:31Z 235K followers, 152.7K engagements "Lecture 50: Dynamic Memory Allocation of 2D and 3D Arrays in C++ Pointers in C++ Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Day 71/180 #180daysofcode #180 hard We have made a whole video in c++ How to solve pattern print problem. We explained everything with the help of code. We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech revolution in our" [YouTube Link](https://youtube.com/watch?v=tFCc2ESnG4w) 2023-12-04T00:30Z 235K followers, 28.3K engagements "JavaScript DOM Manipulation The Document Object Model (DOM) Explained Javascript Full Course #13 Ready to make your web pages interactive In this complete in-depth guide we will master the JavaScript DOM (Document Object Model). This is the crucial bridge that allows your JavaScript code to see change and react to your HTML content. We'll start from "first principles" explaining what the DOM is and why it's essential for all modern web development. You'll learn all the different ways to select any element on your page from the classic getElementById to the powerful and modern querySelector." [YouTube Link](https://youtube.com/watch?v=wLp99HGG8GQ) 2025-10-14T12:31Z 235K followers, 20.7K engagements "Facade Design Pattern Real-world use case + Code Design patterns in LLD Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army fourth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we dive deep into the *Adapter Design Pattern* by solving a realworld problem: consuming a thirdparty data provider that returns XML and exposing it in our" [YouTube Link](https://youtube.com/watch?v=0KlnSdvsojc) 2025-06-03T12:30Z 233K followers, 18.7K engagements "Template Method Pattern Step-by-Step Example (UML + Code) Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army fourth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we dive deep into the *Template Method Design Pattern* one of the key behavioral patterns in software engineering. Youll learn how to define a skeleton of an algorithm in a" [YouTube Link](https://youtube.com/watch?v=8-vE_bmEt18) 2025-06-06T12:30Z 235K followers, [----] engagements "HTML Nested Lists & Tables: The Complete Guide with [--] Detailed Examples HTML Full Course #02 Struggling with how to structure complex data in HTML This is the only guide you'll need to finally master nested lists and tables. We go beyond the basics and dive deep into practical real-world examples.' in this comprehensive 56-minute tutorial we demystify two of the most essential HTML elements for organizing content: nested lists and tables. Forget short confusing videos We will patiently walk through [--] distinct examples for nested lists and another [--] for tables showing you how to build them" [YouTube Link](https://youtube.com/watch?v=AJ4E1zf5tQs) 2025-09-03T12:30Z 235K followers, 59.3K engagements "useEffect Hook in React Hook in JS ReactJS Full Course #5 Is the useEffect hook a constant source of confusion Do you find yourself creating infinite loops or struggling with when and why your effects are running You've come to the right place. In this deep-dive tutorial we are going to deconstruct the useEffect hook from absolute first principles. We're moving beyond the syntax to build a powerful mental model of what an "effect" truly is and why React needs a special hook to manage it. We'll start by breaking our code on purpose to see why side effects can't live in the component body and" [YouTube Link](https://youtube.com/watch?v=AM7IbEW4apk) 2025-12-06T12:30Z 235K followers, 13.1K engagements "Binary Search Tree: Fixing Two nodes of a BST Sorted Link List to BST Merge two BST Trees Binary Search Tree Data Structure and Algorithm 180daysofcode #dsa #datastructures 1: Sorted Link List to BST : https://www.geeksforgeeks.org/problems/sorted-list-to-bst/1page=1&difficulty%5B%5D=2&category%5B%5D=Binary%2520Search%2520Tree&sortBy=submissions 2: Merge two BST: https://www.geeksforgeeks.org/problems/merge-two-bst-s/1page=1&difficulty%5B%5D=2&category%5B%5D=Binary%2520Search%2520Tree&sortBy=submissions 3: Fixing Two nodes of a BST :" [YouTube Link](https://youtube.com/watch?v=GMZ3DcXiHHQ) 2024-03-14T00:30Z 235K followers, 20.8K engagements "What is HTML Heading Paragraph Anchor tag Image element HTML Full Course #01 Ready to build your very first webpage from scratch You're in the right place This is the ultimate beginner's guide to HTML designed to take you from zero to creating a structured webpage in just one video. We'll cover the absolute essentials that every future web developer needs to know. No fluff just the core concepts you'll use every single day. By the end of this tutorial you'll not only understand what HTML is but you'll have also built a simple webpage yourself 👇 What You'll Learn in This Video 👇 ✨ What is" [YouTube Link](https://youtube.com/watch?v=GkZN_-HMCJ8) 2025-09-02T12:30Z 235K followers, 82.6K engagements "JavaScript Numbers & Math Object Explained Random Number Generation Javascript Full Course #05 Numbers are at the heart of every application but do you really understand how they work in JavaScript In this in-depth lecture we'll master the Number and Math objects moving from basic properties to advanced secure practices. First we'll explore the JavaScript Number type in detail. We'll cover essential methods like .toFixed() and .toString() and explain the critical difference between a primitive number and a new Number() object (and why you should almost never use the latter). Then we dive into" [YouTube Link](https://youtube.com/watch?v=HTcT-TuraHM) 2025-09-30T12:30Z 235K followers, 26.3K engagements "The Magic of CSS Transitions & Transforms CSS Full course #08 Ready to add that "wow" factor to your websites This is the tutorial where your designs stop being static and start feeling alive and interactive Welcome to Part [--] of our complete CSS course. In this deep-dive lecture we will master two of the most important properties in modern CSS: transform and transition. First you'll learn how to use the transform property to move scale and rotate any element on your page without breaking your layout. We'll cover translateX translateY scale and rotate to give you complete control over your" [YouTube Link](https://youtube.com/watch?v=JkN5b646ll0) 2025-09-18T15:29Z 235K followers, 22.8K engagements "Kth smallest element in an array Kth Largest element in an array Heap Priority Queue Heap Tree Priority Queue Data Structure and Algorithm 180daysofcode #dsa #heap #india 1: Kth smallest element: https://www.geeksforgeeks.org/problems/kth-smallest-element5635/1itm_source=geeksforgeeks&itm_medium=article&itm_campaign=bottom_sticky_on_article 2: Kth Largest Element in an Array: https://leetcode.com/problems/kth-largest-element-in-an-array/description/ 3: Kth largest element in a stream:" [YouTube Link](https://youtube.com/watch?v=Lk-QYXyPL3g) 2024-04-01T00:31Z 234K followers, 33.3K engagements "How to master Web development and system Design in [----] HUGE NEW YEAR OFFER - Web Development Course Launch Doston were kicking off [----] with an exclusive discount just for you 🎉 Limited Time Offers: 🔥 Web Development Course - Just [----] (Early Bird Price) Link: https://rohittnegi.akamai.net.in/new-courses/15 📚 Web Development + System Design Bundle - Only [----] Link: https://rohittnegi.akamai.net.in/new-courses/16 Coder army app: https://play.google.com/store/apps/detailsid=com.rohit.negi Coder army website: coderarmy.in Whats Inside: Learn Web Development the Coder Army way - using" [YouTube Link](https://youtube.com/watch?v=MlVCchOMjoY) 2026-01-01T12:13Z 235K followers, 17.9K engagements "Strategy Design Pattern Explained with Real-World Example Design Patterns in LLD Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Second week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. *Feeling confused about Strategy Design Pattern Youre not alone.* In this video we break it down step-by-step with a *real-world example* that makes everything" [YouTube Link](https://youtube.com/watch?v=PpKvPrl_gRg) 2025-05-21T12:30Z 235K followers, 49.9K engagements "Largest Binary Search Tree Maximum Sum BST in Binary Tree Leetcode Trees Binary Search Tree Data Structure and Algorithm 180daysofcode #dsa #datastructures #leetcode 1: Largest BST: https://www.geeksforgeeks.org/problems/largest-bst/1page=1&difficulty%5B%5D=1&category%5B%5D=Binary%2520Search%2520Tree&sortBy=submissions 2: Maximum Sum BST in Binary Tree: https://leetcode.com/problems/maximum-sum-bst-in-binary-tree/description/ 00:00 Introduction 00:53 Problem [--] - Largest BST 7:27 Optimized Approach of Problem [--] - Largest BST(Order(n)) 49:49 Code Part - Largest BST 1:04:12 Code Part - Method 2" [YouTube Link](https://youtube.com/watch?v=R7UifBXBPXU) 2024-03-15T00:30Z 235K followers, 18.1K engagements "Neural Network for Beginners From Zero to Understanding Deep Learning Learn Neural Networks from scratch in this beginner-friendly tutorial. We start with the fundamental question - when do we actually need neural networks Then build up every concept step by step using first principles thinking. What you'll learn: - Why neural networks exist (when we can't define rules manually) - Perceptron - the simplest building block of deep learning - Weights Bias and what they actually do - How neural networks learn - the weight update formula - Learning rate and why it matters - Gradient descent -" [YouTube Link](https://youtube.com/watch?v=SY0_i6Jyhuw) 2026-01-26T04:30Z 235K followers, 14.5K engagements "Hashing in Data Structure Zero To Advance Level Hash Functions Hash Collisions Separate Chaining Linear Probing Quadratic Probing Double Hashing Cryptography Load Factor and Rehashing How maps work in C++ 00:00 Introduction 00:47 Understanding Hashing 5:35 Understanding Concept using a Question 12:32 Solving Problems in Hash Function Hash Collision 16:04 Method [--] - Separate Chaining for collision 21:58 Method [--] - Linear Probing 27:41 Method [--] - Quadratic Probing 35:21 Method [--] - Double Hashing 43:00 How Separate chaing used in Unordered map 52:50 Why Hashing Function is Important 55:42" [YouTube Link](https://youtube.com/watch?v=TLk7_Ia3rzQ) 2024-08-22T11:06Z 235K followers, 112.2K engagements "Amazons Kiro An Agentic IDE for Smarter Development Amazon has launched Kiro AI a powerful AI-driven Integrated Development Environment (IDE) designed to assist developers throughout the entire software development process. In this video Ill walk you through everything you need to know about Kiro from its core features to how it can impact the way we write and manage code. If youre a developer a student learning to code or someone interested in how AI is changing the software industry this video is for you" [YouTube Link](https://youtube.com/watch?v=XQ-wmwv7fQU) 2025-07-19T05:30Z 233K followers, 13.2K engagements "Lecture 89: Introduction To STACK Implement Stack Using Arrays and LinkedList Stack Stack in C++ DSA 180daysofCode LinkedList in C++ 0:00 Bread representation with Stack 2:35 Visual Representation of Stack 5:15 Definition of Stack 7:00 Operations on Stack 10:10 LIFO method 15:50 Real World Example of Stack 17:48 Operations on Stack using Array 19:42 PUSH Operations on Stack using Array 24:00 POP Operation on Stack using Array 25:46 TOP SIZE AND EMPTY Operations 28:19 Implementation of Stack using Array 36:24 Code part of Stack using Array 54:28 Stack using LinkedLists 1:01:10 Implementation" [YouTube Link](https://youtube.com/watch?v=ZOS1fKa_WUY) 2024-02-05T00:30Z 232K followers, 141K engagements "Introduction To Trees Binary Tree in Data Structure Trees Data Structure and Algorithm 180daysofcode 00:00 Introduction 1:00 Definition of Trees Data Structure 1:17 Understanding Trees with Example 8:22 More Example of Trees Data Structure 13:03 What is Binary Tree 14:11 Understanding Terminologies of Trees 25:28 How to create Binary Tree Data Structure 40:35 How to code Binary Tree Data Structure 51:07 Code Part - Implementing Binary Tree Data Structure 59:23 Outro/Last Note Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp" [YouTube Link](https://youtube.com/watch?v=_b0bfpO3b4I) 2024-02-21T00:30Z 233K followers, 186.6K engagements "State Design Pattern Build Vending Machine (UML & Code) System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Seventh week for #lowleveldesign #systemdesign #8weeksLLdchallenge We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this deep-dive Low-Level Design (LLD) tutorial we explore the State Design Pattern using a classic vending machine example. Youll learn how to: [--]. Define the Context &" [YouTube Link](https://youtube.com/watch?v=bJPmvie_p4w) 2025-06-24T12:30Z 233K followers, [----] engagements "Graph Representation in Data Structure Adjacency Matrix and Adjacency List Introduction to graph Graph Theory Graph in DSA #dsa #graph #datastructure What is Graphs in DSA and why do we need it. We talked about it with the help of real world example and it will help everyone to get command over graphs. Day 2/60 of challenge. 00:00 Introduction 00:21 Understanding Graph Representation 00:48 Types of Data Structure for Graph Representation - Understanding Adjecency Matrix 1:14 Understanding Undirected - Unweighted Graph 9:41 Understanding Undirected - Weigted Graph 12:38 Understanding Directed" [YouTube Link](https://youtube.com/watch?v=bxbrUGvBCnY) 2024-05-16T00:30Z 235K followers, 87.9K engagements "JavaScript Objects Explained In-Depth Javascript Full Course #08 Ready to master the most fundamental building block in all of JavaScript In this complete in-depth guide we will explore everything you need to know about JavaScript Objects from the absolute basics of creating them to the advanced modern techniques used by professional developers. We start from "first principles" explaining what an object is and how to perform basic CRUD (Create Read Update Delete) operations. We'll demystify the powerful this keyword and show you the best ways to loop over an object's properties using modern" [YouTube Link](https://youtube.com/watch?v=iuZkPCBBV5U) 2025-10-06T12:31Z 235K followers, 28.8K engagements "UseContext Hook State Lifting Props Drilling ReactJS Full Course #10 🔥 In this video you'll learn React Context API from scratch using first principles thinking **What You'll Learn:** ✅ What is State Lifting and why it's needed ✅ The Prop Drilling problem with real examples ✅ How Context API solves prop drilling ✅ Creating and using Context (React [--] new syntax) ✅ useContext hook explained with mental models ✅ Complete e-commerce cart example ✅ Best practices and performance optimization **Topics Covered:** - State Lifting between sibling components - Prop Drilling and its problems -" [YouTube Link](https://youtube.com/watch?v=kVtrCJLJx70) 2026-01-31T10:22Z 235K followers, [----] engagements "Java + Spring Boot Complete Course FREE in [----] Java Full Course FREE Java & Spring Boot Course Coming to YouTube The most requested topic is finally here - and it's **completely FREE** for the Coder Army community. In [----] while everyone's debating the next JavaScript framework **enterprise applications worth billions still run on Java and Spring Boot**. From fintech to e-commerce to cloud platforms - this is the stack powering real-world production systems. **Why this course exists:** Most Java tutorials teach you to memorize Spring Boot annotations without understanding WHY they exist." [YouTube Link](https://youtube.com/watch?v=pxg7vnuMPnE) 2026-02-08T08:08Z 235K followers, 31.1K engagements "Composite Design Pattern Build File System (UML & Code) System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army fourth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this step-by-step tutorial youll learn how to implement the *Composite Design Pattern* by constructing a simple file system example. Well begin with a UML class diagram to" [YouTube Link](https://youtube.com/watch?v=xaaiMGmyDJk) 2025-06-05T12:31Z 231K followers, 10.8K engagements "AVL Tree Deletion (Theory + Dry Run + Code Implementation) Trees AVL Tree Data Structure and Algorithm 180daysofcode #dsa #datastructures #leetcode 1: Deletion in AVL Tree: https://www.geeksforgeeks.org/problems/avl-tree-deletion/1itm_source=geeksforgeeks&itm_medium=article&itm_campaign=bottom_sticky_on_article 00:00 Introduction 00:53 Performing AVL Tree Deletion 17:12 Balance AVL Tree by Rotation 36:09 Code Part - AVL Tree Deletion 52:05 Calculating Time Complexity 52:37 Last Note Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our" [YouTube Link](https://youtube.com/watch?v=ytesTkCa3wk) 2024-03-19T00:30Z 235K followers, 28.4K engagements "Lecture 07: Solve Any Pattern Problem with Simple Trick Part-2 Pattern Print Problem in c++. How to solve Pattern Print problem as a beginner. Pattern Problem Pattern print problem with real life example Day 9/180 180daysofcode [---] hard We have made a whole video in c++ How to solve pattern print problem. We explained everything with the help of code. We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech revolution in our country and in upcoming future we want to create a tech which will" [YouTube Link](https://youtube.com/watch?v=-o6MPFfGipU) 2023-09-26T00:47Z 30.8K followers, 12.8K engagements "Lecture 27: What is STL Vector in C++ What is STL in C++ and all detail around with implementation part. HomeWork Sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Day 37/180 #180daysofcode #180 hard We have made a whole video in c++ How to solve pattern print problem. We explained everything with the help of code. We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech" [YouTube Link](https://youtube.com/watch?v=-tDAAOYFehc) 2023-10-24T00:30Z 173K followers, 72.5K engagements "Greedy Algorithm From Basic To Advance Recursion BackTracking #dsa #graph #datastructure What is Graphs in DSA and why do we need it. We talked about it with the help of real world example and it will help everyone to get command over graphs. Day 26/60 of challenge. 1: Minimum number of Coins: https://www.geeksforgeeks.org/problems/-minimum-number-of-coins4426/1itm_source=geeksforgeeks&itm_medium=article&itm_campaign=bottom_sticky_on_article 2: Shop in Candy Store:" [YouTube Link](https://youtube.com/watch?v=-wqKvpYGg1I) 2024-07-23T15:31Z 190K followers, 57.4K engagements "Still figuring out what to do in life Coding DSA WEB DEVELOPMENT" [YouTube Link](https://youtube.com/watch?v=0CF5nvUWOm8) 2025-03-22T05:35Z 172K followers, [----] engagements "Lecture 06: Solve Any Pattern Problem With Simple Trick Part-1 Pattern Print Problem in c++. nHow to solve Pattern Print problem as a beginner.nPattern ProblemnnDay 8/180 180daysofcode [---] hardnnWe have made a whole video in c++ How to solve pattern print problem. We explained everything with the help of code.nnWe are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech revolution in our country and in upcoming future we want to create a tech which will create many jobs in India.nnVideo will" [YouTube Link](https://youtube.com/watch?v=0LawAwK5OaI) 2023-09-25T00:34Z 30.8K followers, 20.6K engagements "Build Snake and Ladder Game UML + Code System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Seventh week for #lowleveldesign #systemdesign #8weeksLLdchallenge We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this LLD session we're designing the **classic Snake and Ladder game** using real-world System Design principles. You'll learn how to build a flexible and extensible game engine using" [YouTube Link](https://youtube.com/watch?v=1NJB54UB8nE) 2025-06-26T12:30Z 187K followers, [----] engagements "Introduction To Web Development Internet Working Web Development Full Course We have launched our Free Web Development Course on Youtube for Free on Coder Army Channel. We will integrate System Design and AI also in the course show that you will become industry ready. Course start date: [--] september Timing: 6pm (Mon-fri) Hackathon will be organised after course completion Join Premium Whatsapp Group: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Class Notes : https://www.notion.so/Web-Development-Course-25b3a78e0e2280919c1ed15f0878fa15source=copy_link Twitter:" [YouTube Link](https://youtube.com/watch?v=1pcikNlDB-4) 2025-09-01T12:30Z 208K followers, 72.1K engagements "Hard Problem on Linked List: Flattening a Linked List Merge K Sorted Linked List LinkedList DSA 180daysofCode LinkedList in C++ 1: Flattening a Linked List: https://www.geeksforgeeks.org/problems/flattening-a-linked-list/1utm_source=geeksforgeeks&utm_medium=article_practice_tab&utm_campaign=article_practice_tab 2: Merge K sorted linked lists: https://www.geeksforgeeks.org/problems/merge-k-sorted-linked-lists/1utm_source=geeksforgeeks&utm_medium=article_practice_tab&utm_campaign=article_practice_tab Home work sheet:" [YouTube Link](https://youtube.com/watch?v=2DQJvLq-rm8) 2024-01-29T13:57Z 60.4K followers, [----] engagements "Start C++ from Zero and Write Your First Program Hi I hope this video will help you to clear your doubt regarding C++ Basics. Basically we have covered from very beginner level so that any student who is just new to Computer science can understand all the topic. Today is 3/180 day challenge. 180daysofcode We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech revolution in our country and in upcoming future we want to create a tech which will create many jobs in India. CoderArmy Website" [YouTube Link](https://youtube.com/watch?v=2Gexv2eld4Y) 2023-09-20T00:37Z 34K followers, 21.3K engagements "How To Solve Recursion Problem from [--] different Method Recursion in c++ What is Recursion Recursion Basic Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Day 73/180 #180daysofcode #180 hard We have made a whole video in c++ How to solve pattern print problem. We explained everything with the help of code. We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a" [YouTube Link](https://youtube.com/watch?v=2OQ46x0Zka8) 2023-12-06T00:30Z 34K followers, [----] engagements "Iterator Design Pattern UML + Code System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Sixth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video well implement the *Iterator Pattern* from scratch in C++ / Java to decouple traversal logic from data structuresmaking your code cleaner more extensible and true to Low-Level Design" [YouTube Link](https://youtube.com/watch?v=30fveBRLqMw) 2025-06-20T12:30Z 186K followers, [---] engagements "Mediator Design Pattern Build Chat Room UML + Code System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Seventh week for #lowleveldesign #systemdesign #8weeksLLdchallenge We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this LLD session were diving into the Mediator Design Pattern one of the most powerful behavioral patterns for reducing tight coupling between classes. Well begin by" [YouTube Link](https://youtube.com/watch?v=3lGIICzgyQQ) 2025-06-27T12:30Z 187K followers, [---] engagements "Bellman-Ford Algorithm Distance from the Source Graph Data Structure Graph Theory Graph in DSA #dsa #graph #datastructure What is Graphs in DSA and why do we need it. We talked about it with the help of real world example and it will help everyone to get command over graphs. Day 14/60 of challenge. 1: Distance from the Source: https://www.geeksforgeeks.org/problems/distance-from-the-source-bellman-ford-algorithm/1 00:00 Introduction 00:33 Discussing Bellman Ford Algorithm 46:14 Implementing Bellman Ford Algorithm 1:04:17 Trying using Bellman Ford Algorithm on Undirected Graph 1:08:58 Last" [YouTube Link](https://youtube.com/watch?v=6DCnv6Q3iwk) 2024-06-11T00:30Z 142K followers, [----] engagements "Lecture 23: Binary Search Different Problem Search Insert Position Sqrt(x) Count occurrence Binary Search What is Binary Search Binary search in C++. 1: Find First and Last Position of Element in Sorted Array : https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/description/ 2: Search Insert Position: https://leetcode.com/problems/search-insert-position/description/ 3: Sqrt(x): https://leetcode.com/problems/sqrtx/description/ 4: Kth Missing Positive Number: https://leetcode.com/problems/kth-missing-positive-number/description/ 5: Count the Zeros:" [YouTube Link](https://youtube.com/watch?v=740PMblqK6o) 2023-10-18T17:02Z 60.4K followers, [----] engagements "Lecture 91: Stack Problem: Next Greater Element Next Smaller Element Stock Span Problem Stack 180daysofCode Solve Many Problem on Stack 1: Next Greater Element: https://www.geeksforgeeks.org/problems/next-greater-element/1utm_source=geeksforgeeks&utm_medium=ml_article_practice_tab&utm_campaign=article_practice_tab 2: Next Smaller Element: https://www.codingninjas.com/studio/problems/next-smaller-element_1112581leftPanelTabValue=PROBLEM 3: Smallest Number on Left:" [YouTube Link](https://youtube.com/watch?v=8dwjKE9GM30) 2024-02-07T00:30Z 182K followers, 39.8K engagements "Launching Live WEB Development and WEB3 Course NEXUS We have Launched a Live course on Web Development (MERN Stack) and Blockchain where we are going to cover each and everything from basic to Advance level. There is no prerequisite of the course. Buy Course link: https://rohittnegi.akamai.net.in/new-courses/4-web-development-block-chain Play store app of Coder Army: https://play.google.com/store/apps/detailsid=com.rohit.negi Coupon Code: CODER ARMY Buy Course at [--] Thousand ( [--] hours) Coder Army Website: https://www.coderarmy.in/ No Prerequisite Required Course Start Date: [--] sep [----] Class" [YouTube Link](https://youtube.com/watch?v=9JAi7q4klec) 2024-08-25T05:30Z 160K followers, 14.8K engagements "Launching LIVE High Level Design Cohort 🚀 We are launching live High level Design Cohort. We are going to cover everything from basic to advance. If you want to become a top engineer you should definitely know about System Design. Course price: [----] (Only for [--] Days) Class timing: Mon and Thu (9-11pm) Instructor: Aditya Tandon TA support and certification is available. Enroll in HLD cohort now👇 Course link: https://rohittnegi.akamai.net.in/new-courses/8-high-level-design-course Coder army App link: https://play.google.com/store/apps/detailsid=com.rohit.negi You can buy NEXUS also at 5500" [YouTube Link](https://youtube.com/watch?v=9uMJcGvbfUE) 2025-06-29T05:13Z 188K followers, [----] engagements "Build Tic Tac Toe Game UML + Code System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Seventh week for #lowleveldesign(https://www.youtube.com/hashtag/lowleveldesign) #systemdesign(https://www.youtube.com/hashtag/systemdesign) #8weeksLLdchallenge(https://www.youtube.com/hashtag/8weekslldchallenge). We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we'll dive deep into Low-Level" [YouTube Link](https://youtube.com/watch?v=BGFzYjGtRP4) 2025-06-25T12:30Z 187K followers, [----] engagements "Get Ready for Biggest Launch (DEFENSE) AB aayega maja" [YouTube Link](https://youtube.com/watch?v=C6QYjZI5E_U) 2025-08-14T11:26Z 196K followers, [----] engagements "Singleton Design Pattern Thread-Safe Lazy & Eager Initialization + Real Use Cases Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Second week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. Master the Singleton Design Pattern* one of the most commonly asked concepts in system design interviews and source of confusion for many developers In this video" [YouTube Link](https://youtube.com/watch?v=CD3meit-WDc) 2025-05-23T12:30Z 183K followers, [----] engagements "Whatsapp working" [YouTube Link](https://youtube.com/watch?v=COkdkglksTM) 2025-04-18T14:08Z 174K followers, [----] engagements "Visitor Design Pattern UML + Code System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Eighth week for #systemdesign #8weeksLLdchallenge We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we break down the Visitor Design Pattern with a practical File System example showing you how to add new operations like **size calculation compression and virus scanning without changing the file" [YouTube Link](https://youtube.com/watch?v=DnmsxnlCyl0) 2025-07-04T12:30Z 189K followers, [---] engagements "How Bloom Filters Work (And Why Google & Instagram Love Them) Ever wondered how Instagram instantly tells you a username is taken Or how databases handle massive searches so quickly The answer lies in a clever data structure called a Bloom Filter. In this video Ill break down Bloom Filters step by step: What Bloom Filters are How they use hash functions and bit arrays Why they allow false positives but never false negatives Real-world applications in search engines networking and big tech By the end youll understand not just how Bloom Filters work but also why theyre so powerful in" [YouTube Link](https://youtube.com/watch?v=FDL2pGDtcwI) 2025-08-24T05:30Z 198K followers, [----] engagements "Build Zepto 10-Mins Quick Commerce Inventory Management System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Sixth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In todays video well architect and code a scalable *Zepto clone* for inventory management using C++/Java and proven design patterns. Youll learn how to: - *Model Products*" [YouTube Link](https://youtube.com/watch?v=FcbsppIX0bg) 2025-06-16T12:43Z 186K followers, [----] engagements "Builder Design Pattern Classic Builder Step Builder UML + Code System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Sixth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video well explore three flavors of the *Builder Pattern* in C++: [--]. *Classic Builder* a nested builder for HttpRequest BuilderPattern [--]. *Builder with" [YouTube Link](https://youtube.com/watch?v=G4Ntl9KzIxY) 2025-06-19T12:30Z 186K followers, [----] engagements "Merge sort. #dsa #coding" [YouTube Link](https://youtube.com/watch?v=I-hUzM4390w) 2025-04-05T02:32Z 173K followers, [----] engagements "Build Tinder Dating Site System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Sixth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we architect and implement a scalable dating-app system from the ground upcomplete with profiles matching logic chat rooms and notifications. Youll see how to apply key design patterns to keep" [YouTube Link](https://youtube.com/watch?v=IcgLSo6--ok) 2025-06-17T12:30Z 194K followers, [----] engagements "Observer Design Pattern Explained Real-Life Use Case + Code Example Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Third week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. Hey Something just changed."* Thats the magic of the *Observer Design Pattern* when one object changes others are instantly notified. In this video well cover: - What is the" [YouTube Link](https://youtube.com/watch?v=Jpmp4GY8r3Q) 2025-05-27T12:30Z 183K followers, [----] engagements "Prototype Design Pattern UML + Code System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Eighth week for #lowleveldesign #systemdesign #8weeksLLdchallenge We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In today's video we're diving deep into the Prototype Design Patternone of the smartest ways to efficiently create similar objects without the cost of creating from scratch every time. Understand" [YouTube Link](https://youtube.com/watch?v=KMQFNV8LFec) 2025-06-30T12:30Z 188K followers, [---] engagements "Bridge Pattern Real-world use case + Code System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army fifth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. In todays System Design LLD session well explore the *Bridge Design Pattern a structural pattern that decouples an abstraction from its implementation so they can evolve independently. Using a **Car Engine* example in C++: [--]. *UML Diagram Walkthrough* See how the Car abstraction hierarchy (Sedan SUV) is bridged to the Engine implementor hierarchy (Petrol Diesel Electric). [--]. *Code" [YouTube Link](https://youtube.com/watch?v=KVf8dwgTbiM) 2025-06-13T12:30Z 186K followers, [----] engagements "Chain of Responsibility Pattern Build Cash Dispenser(UML & Code) System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army fifth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we explore the*Chain of Responsibility*pattern: a behavioral design pattern that lets you pass a request along a series of handlers until one of them" [YouTube Link](https://youtube.com/watch?v=LXVKB6deQMo) 2025-06-10T12:30Z 185K followers, [----] engagements "Quick sort chamka kya❤" [YouTube Link](https://youtube.com/watch?v=Qn_iOXLyzPk) 2025-04-07T14:54Z 173K followers, [----] engagements "Binary Search Hard Interview Problem Aggressive Cow KOKO Eating Banana Binary Search What is Binary Search Binary search in C++. 1: Aggressive cow: https://practice.geeksforgeeks.org/problems/aggressive-cows/0 2: Koko Eating Bananas: https://leetcode.com/problems/koko-eating-bananas/ 3: Magnetic Force Between Two Balls: https://leetcode.com/problems/magnetic-force-between-two-balls/description/ Day 36/180 #180daysofcode #180 hard We have made a whole video in c++ How to solve pattern print problem. We explained everything with the help of code. We are doing [---] days challenge and going to" [YouTube Link](https://youtube.com/watch?v=ThCyc5GcuRQ) 2023-10-23T02:05Z 30.8K followers, [----] engagements "Morris Traversal : Inorder Traversal Flatten Binary Tree to LinkedList Post Order PreOrder Trees Binary Tree Data Structure and Algorithm 180daysofcode 1: Inorder: https://www.geeksforgeeks.org/problems/inorder-traversal-iterative/1utm_source=geeksforgeeks&utm_medium=ml_article_practice_tab&utm_campaign=article_practice_tab 2: preOrder: https://www.geeksforgeeks.org/problems/preorder-traversal-iterative/1utm_source=geeksforgeeks&utm_medium=ml_article_practice_tab&utm_campaign=article_practice_tab 3: PostOrder:" [YouTube Link](https://youtube.com/watch?v=TvfGWVAv_cc) 2024-03-04T00:30Z [--] followers, [----] engagements "Closure in Javascript Scope and High order function in javascript Javascript Full Course #11 Ready to unlock the concepts that separate beginner JavaScript developers from the pros In this in-depth lecture we will demystify three of the most powerful and foundational features of the language: Scope Closures and Higher-Order Functions. First we'll build a rock-solid mental model of Scope. You'll learn the "one-way glass" rule of Global Function and Block scope and understand how the JavaScript engine knows where to find your variables. This is the key that unlocks everything else. Next we'll" [YouTube Link](https://youtube.com/watch?v=UBCPtXXMAWs) 2025-10-09T12:30Z 235K followers, 18.4K engagements "Map Filter Reduce Set & Map in Javascript Javascript Full Course #12 Are you ready to stop writing clumsy for loops and start writing clean powerful and modern JavaScript This in-depth lecture is your ultimate guide to the most essential methods and data structures in the language: Map Filter Reduce Set and Map. First we will master the "big three" of functional programming: .map() .filter() and .reduce(). You'll learn how to use these higher-order functions to transform select and aggregate data with concise readable one-line commands. We'll use a real-world products dataset to demonstrate" [YouTube Link](https://youtube.com/watch?v=UByPRYaMEkI) 2025-10-10T12:30Z 235K followers, 19.3K engagements "Tower of Hanoi Code part and Dry Run Tower of Hanoi: https://practice.geeksforgeeks.org/problems/tower-of-hanoi-1587115621/1utm_source=geeksforgeeks&utm_medium=article_practice_tab&utm_campaign=article_practice_tab Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Day 93/180 #180daysofcode #180 hard We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech" [YouTube Link](https://youtube.com/watch?v=V5vNq2WOPGE) 2023-12-26T00:30Z 34K followers, [----] engagements "Hackathon price heloo" [YouTube Link](https://youtube.com/watch?v=VBf9Q5ZPH6c) 2025-06-21T17:29Z 187K followers, [----] engagements "Bubble sort. #dsa #coding #coder" [YouTube Link](https://youtube.com/watch?v=WeZp4ooygVI) 2025-03-27T06:47Z 172K followers, [----] engagements "Graphs: Covid Spread Find the number of Islands Replace O's with X's Graph Data Structure Graph Theory Graph in DSA #dsa #graph #datastructure What is Graphs in DSA and why do we need it. We talked about it with the help of real world example and it will help everyone to get command over graphs. Day 8/60 of challenge. 1: Covid Spread : https://www.geeksforgeeks.org/problems/covid-spread--141631/1 2: Find the number of Islands : https://www.geeksforgeeks.org/problems/find-the-number-of-islands/1 3; Replace O's with X's:" [YouTube Link](https://youtube.com/watch?v=XIaqB8-wAiQ) 2024-05-27T01:44Z 135K followers, [----] engagements "Heap Interview Problem: Merge K Sorted Linked List Merge K Sorted Arrays Heap Tree Priority Queue Data Structure and Algorithm 180daysofcode #dsa #heap Prerequisite: https://youtu.be/2DQJvLq-rm8si=OSi8ysu6_GOiwo3C 1: Merge K Sorted Linked List: https://www.geeksforgeeks.org/problems/merge-k-sorted-linked-lists/1itm_source=geeksforgeeks&itm_medium=article&itm_campaign=bottom_sticky_on_article 2: Merge k Sorted Arrays: https://www.geeksforgeeks.org/problems/merge-k-sorted-arrays/1 Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our" [YouTube Link](https://youtube.com/watch?v=XePjO6Q8FDE) 2024-04-04T00:30Z 115K followers, [----] engagements "LinkedList Problems: Remove Duplicates Merge [--] Sorted LinkedList Sort a LinkedList of [--] [--] and [--] 1: Remove duplicate element from sorted Linked List: https://www.geeksforgeeks.org/problems/remove-duplicate-element-from-sorted-linked-list/1 2: Merge two sorted linked lists: https://www.geeksforgeeks.org/problems/merge-two-sorted-linked-lists/1utm_source=geeksforgeeks&utm_medium=article_practice_tab&utm_campaign=article_practice_tab 3: Given a linked list of 0s 1s and 2s sort it: https://www.geeksforgeeks.org/problems/given-a-linked-list-of-0s-1s-and-2s-sort-it/1 Home work sheet:" [YouTube Link](https://youtube.com/watch?v=XlwYGxlUQAA) 2024-01-23T00:30Z 38K followers, [----] engagements "First Hackathon for System Design Our First hackathon is launched. You will get problem statement from Coder Army app Once you completed the challenge submit your code in Coder Army app. There is a Course Folder with name System Design. Coder Army app: https://play.google.com/store/apps/detailsid=com.rohit.negi Website:https://rohittnegi.akamai.net.in/new-courses Join Coder Army Whatsapp Group: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Code and Notes: Github : https://github.com/adityatandon15/LLD Connect with Aditya Tandon Instagram : https://www.instagram.com/adityatandon2" [YouTube Link](https://youtube.com/watch?v=bfwKBCSbBZY) 2025-06-01T10:44Z 185K followers, [----] engagements "Web Development FREE Course Orientation We are launching Free Web Development Course on Youtube for Free on Coder Army Channel. We will integrate System Design and AI also in the course show that you will become industry ready. Course start date: [--] september Timing: 6pm (Mon-fri) Hackathon will be organised after course completion Join Premium Whatsapp Group: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Course Detail: https://www.notion.so/Web-Development-Course-25b3a78e0e2280919c1ed15f0878fa15source=copy_link Twitter: https://x.com/rohit_negi9s=21 Channel: @CoderArmy9" [YouTube Link](https://youtube.com/watch?v=cEr2LzUGMkI) 2025-08-31T16:41Z 203K followers, 25.9K engagements "Array doesnt exist in Javascript" [YouTube Link](https://youtube.com/watch?v=cEtj0Env8_o) 2025-04-10T14:19Z 174K followers, [----] engagements "Build Splitwise Clone Expense Splitting App System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Seventh week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. Ever wondered how apps like *Splitwise* handle splitting expenses tracking balances and simplifying debts between friends or groups In this video well break down a *complete Low Level" [YouTube Link](https://youtube.com/watch?v=cWtBZUAQpcc) 2025-06-23T12:30Z 187K followers, [----] engagements "Command Design Pattern Real-world use case + Code Design patterns in LLD Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Third week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video well explore the *Command Design Pattern* through a practical *Smart Home Automation* example. Youll learn how to: [--]. *Encapsulate device actions* (turn" [YouTube Link](https://youtube.com/watch?v=cnQZsN0jxEY) 2025-05-30T12:30Z 184K followers, [----] engagements "Factory Design Pattern Simple Factory Method & Abstract Factory with Real-Life Examples Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Second week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. Confused between Simple Factory Factory Method and Abstract Factory This video clears it all from concepts to code. In this comprehensive tutorial we cover" [YouTube Link](https://youtube.com/watch?v=dMK4TbG29fk) 2025-05-22T12:30Z 183K followers, [----] engagements "Build Chess Game UML + Code System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Eighth week for #lowleveldesign #systemdesign #8weeksLLdchallenge We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. LLD Deep Dive: Building a Chess Game from Scratch In this video we break down the complete Low-Level Design of a Chess game piece by piece. From how to represent the board and pieces to move validation" [YouTube Link](https://youtube.com/watch?v=eULHvaMZUks) 2025-07-03T12:30Z 188K followers, [----] engagements "Lecture 76: Exception Handling in C++ Exception Handling Error in C++ Runtime Error in C++ Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Day 108/180 #180daysofcode #180 hard We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech revolution in our country and in upcoming future we want to create a tech which will create many jobs in India. Video will come" [YouTube Link](https://youtube.com/watch?v=essQiHKRmrc) 2024-01-11T12:24Z 195K followers, 91.7K engagements "GenAI talk with GuruJI Hello" [YouTube Link](https://youtube.com/watch?v=fjpojGltxgw) 2025-05-24T18:05Z 183K followers, [----] engagements "JavaScript Arrays Explained In-Depth Javascript Full Course #07 Ready to master the most powerful and versatile data structure in JavaScript In this complete in-depth guide we will explore everything you need to know about JavaScript Arrays from the absolute basics to the advanced modern techniques used by professional developers. We start from "first principles" explaining what an array is and how to create and access its elements. We then cover essential methods for modifying arrays like .push() .pop() and the powerful .splice(). You'll learn the best ways to loop over arrays including the" [YouTube Link](https://youtube.com/watch?v=fuA8BQkQO_E) 2025-10-03T12:30Z 235K followers, 26.2K engagements "Lecture 18: Time and Space Complexity From Zero To Advance Time and Space Complexity in c++. Big O notation Theta Notation Omega Notation [--] Example on Time and Space complexity Day 24/180 #180daysofcode #180 hard We have made a whole video in c++ How to solve pattern print problem. We explained everything with the help of code. We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech revolution in our country and in upcoming future we want to create a tech which will create many jobs in" [YouTube Link](https://youtube.com/watch?v=hUdqNPhXOh4) 2023-10-11T00:31Z 160K followers, 108.9K engagements "Lecture 60: Quick Sort Algorithm Quick Sort in C++ Time Complexity of Quick Sort Space Complexity of Quick Sort 1: Sort an Array: https://leetcode.com/problems/sort-an-array/description/ Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Day 85/180 #180daysofcode #180 hard We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech revolution in our country and in" [YouTube Link](https://youtube.com/watch?v=iVj8uyd50f4) 2023-12-18T00:30Z 161K followers, 22.5K engagements "Wrapping up with System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Eighth week for #lowleveldesign #systemdesign #8weeksLLdchallenge We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we wrap up our System Design. We will talk about anti-patterns Null Object pattern and end our series of System Design. Join Coder Army Whatsapp Group:" [YouTube Link](https://youtube.com/watch?v=iXHlc_S3Ae4) 2025-07-06T07:33Z 189K followers, [----] engagements "How JavaScript Code Runs Hoisting in Javascript Javascript Full Course #10 Ever wonder what actually happens when you run a line of JavaScript Go beyond just writing code and truly understand the "magic" behind the scenes. In this detailed step-by-step guide we'll break down the entire JavaScript execution model from first principles. This is the foundational knowledge that separates beginner developers from senior engineers. By the end of this video you will finally have that "aha" moment with concepts like the Call Stack Hoisting the Memory Heap and the Execution Context. WHAT YOU WILL" [YouTube Link](https://youtube.com/watch?v=ijPq-u3y9cs) 2025-10-08T12:31Z 235K followers, 17.5K engagements "Lecture 70: Object Oriented Programming in C++ Introduction to OOPs What is Class What is Object What is Padding What is Static and Dynamic Memory Allocation Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Day 99/180 #180daysofcode #180 hard We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech revolution in our country and in upcoming future we want to" [YouTube Link](https://youtube.com/watch?v=iw1Xf_33YM0) 2024-01-02T01:13Z 198K followers, 331.8K engagements "Build Discount Coupon Engine System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army fifth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this deep-dive LLD tutorial well design and implement a full-featured *Discount Coupon Engine* in C++/Java then translate the same concepts into Java. Youll see how to: [--]. *Define flexible discount" [YouTube Link](https://youtube.com/watch?v=jbVevoGN_pM) 2025-06-12T12:30Z 185K followers, [----] engagements "The Illusion of Thinking: What Apples New AI Research Reveals Artificial Intelligence looks smart but does it really think In this video we dive into Apples latest research paper that highlights the illusion of thinking in AI models. Discover why AIs answers may feel intelligent yet lack true reasoning and what this means for the future of AI innovation and humanmachine interaction. - Breaking down Apples strange findings - Why AI creates the illusion of thought - What this means for developers researchers & everyday users Stay till the end to get a clear understanding of why AI isnt as" [YouTube Link](https://youtube.com/watch?v=lIHE9NVpBoI) 2025-08-28T06:24Z 213K followers, 24.3K engagements "System Design" [YouTube Link](https://youtube.com/watch?v=o_bXmg8wSj8) 2025-04-21T11:32Z 175K followers, [----] engagements "Lecture 75: Polymorphism and Virtual Function in C++ Polymorphism Compile Time Polymorphism Runtime Polymorphism Function Overloading Operator Overloading Virtual Function Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Day 107/180 #180daysofcode #180 hard We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech revolution in our country and in upcoming" [YouTube Link](https://youtube.com/watch?v=p2h8rGnkD0o) 2024-01-10T02:14Z 188K followers, 96.5K engagements "Memento Design Pattern UML + Code System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Eighth week for #lowleveldesign #systemdesign #8weeksLLdchallenge We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video well break down the Memento Design Pattern with a practical real-world example a simple in-memory database that supports transactions backups and rollbacks just like real systems do." [YouTube Link](https://youtube.com/watch?v=p8-ile_nWnY) 2025-07-05T12:31Z 189K followers, [---] engagements "Heap [--] Interview Problem Height of Heap Minimum Cost of ropes Magician and Chocolates Trees Heap Tree Data Structure and Algorithm 180daysofcode #dsa #datastructures #heap 1: Height of Heap : https://www.geeksforgeeks.org/problems/height-of-heap5025/1page=1&difficulty%5B%5D=-1&category%5B%5D=Heap&sortBy=submissions 2:Minimum Cost of ropes : https://www.geeksforgeeks.org/problems/minimum-cost-of-ropes-1587115620/1page=1&difficulty=0&category=Heap&sortBy=submissions 3:Magician and Chocolates: https://www.interviewbit.com/problems/magician-and-chocolates/ 4: Last Stone Weight:" [YouTube Link](https://youtube.com/watch?v=pCsWDX2K06o) 2024-03-28T14:59Z 161K followers, 10.1K engagements "Lecture 73: Inheritance Access Modifier Real Life Example Inheritance in C++ Access Modifier Public Private Protected Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Day 102/180 #180daysofcode #180 hard We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech revolution in our country and in upcoming future we want to create a tech which will create many jobs" [YouTube Link](https://youtube.com/watch?v=qq3BY4viEB4) 2024-01-05T00:36Z 161K followers, 31.2K engagements "Lecture 71: Constructor and Destructor in C++ Introduction to OOPs Constructor in C++ Destructor in C++ Default Constructor Parameterized Constructor Copy Constructor Inline Constructor Constructor Overloading Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Day 100/180 #180daysofcode #180 hard We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech" [YouTube Link](https://youtube.com/watch?v=sNiiJ16dLz0) 2024-01-03T02:03Z 173K followers, 140.5K engagements "STL in C++ Pair in C++ Set in C++ List in C++ Map in C++ #dsa #datastructures #leetcode 00:00 Introduction to Standard Template Library 2:21 Understanding Pair in C++ 7:59 Code Part - Pair in C++ 17:18 Understanding List in C++ 22:41 Code Part - List in C++ 34:57 Set in C++ 51:25 Code Part - Set in C++ 1:13:20 Unordered Set in C++ 1:19:07 Code Part - Unordered Set in C++ 1:22:57 Understanding Map in C++ 1:34:11 Code Part - Map in C++ 1:51:00 Last Note Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel:" [YouTube Link](https://youtube.com/watch?v=uhvfRERErh8) 2024-03-25T01:49Z 176K followers, 39.1K engagements "HIGH LEVEL SYSTEM DESIGN LETS GOO" [YouTube Link](https://youtube.com/watch?v=vKZaTHBTkxw) 2025-06-29T17:06Z 188K followers, [----] engagements "Flyweight Design Pattern UML + Code System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Sixth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video well implement the *Iterator Pattern* from scratch in C++ / Java to decouple traversal logic from data structuresmaking your code cleaner more extensible and true to Low-Level" [YouTube Link](https://youtube.com/watch?v=vNSRcegCO8E) 2025-06-21T12:31Z 186K followers, [---] engagements "Lecture 24: Search in a Rotated Array Peak index in a Mountain Array Kth Missing Positive Number Binary Search What is Binary Search Binary search in C++. 1: Peak Index in a Mountain Array: https://leetcode.com/problems/peak-index-in-a-mountain-array/description/ 2: Find Minimum in Rotated Sorted Array: https://leetcode.com/problems/find-minimum-in-rotated-sorted-array/ 3: Search in Rotated Sorted Array: https://leetcode.com/problems/search-in-rotated-sorted-array/description/ 4: Kth Missing Positive Number: https://leetcode.com/problems/kth-missing-positive-number/description/ Day 32/180" [YouTube Link](https://youtube.com/watch?v=w2HOAYymS3A) 2023-10-19T00:35Z 30.6K followers, [----] engagements "Binary search" [YouTube Link](https://youtube.com/watch?v=w6WPtL9DkJs) 2025-04-12T15:34Z 174K followers, [----] engagements "Binary Tree: PreOrder Traversal Iterative PostOrder Traversal Iterative InOrder Traversal Trees Binary Tree Data Structure and Algorithm 180daysofcode 1: PreOrder Traversal Iterative: https://www.geeksforgeeks.org/problems/preorder-traversal-iterative/1 2: PostOrder Traversal Iterative: https://www.geeksforgeeks.org/problems/postorder-traversal-iterative/1page=3&difficulty%5B%5D=1&category%5B%5D=Tree&sortBy=submissions 3: InOrder Traversal: https://www.geeksforgeeks.org/problems/inorder-traversal-iterative/1page=3&difficulty%5B%5D=1&category%5B%5D=Tree&sortBy=submissions 00:00 Introduction" [YouTube Link](https://youtube.com/watch?v=wusLRj3XUdE) 2024-02-28T00:30Z 161K followers, 14.9K engagements "Time to Level UP Your Development Journey We have Launched a Live course on Web Development (MERN Stack) and Blockchain where we are going to cover each and everything from basic to Advance level. There is no prerequisite of the course. Buy Course link: https://rohittnegi.akamai.net.in/new-courses/4-web-development-block-chain Play store app of Coder Army: https://play.google.com/store/apps/detailsid=com.rohit.negi Special Diwali Offer: Get it at 4000rs only Coupon Code: CODER500 Coder Army Website: https://www.coderarmy.in/ No Prerequisite Required Course Start Date: [--] sep [----] Class" [YouTube Link](https://youtube.com/watch?v=y1dLs_Yz_kA) 2024-10-31T11:05Z 211K followers, 19.1K engagements "Build Zomato Food Delivery App System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Third week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. Ever wondered how apps like *Zomato* or *Swiggy* work behind the scenes In this video we walk you through a *Low-Level Design (LLD)* project where we built a *complete online food delivery system*" [YouTube Link](https://youtube.com/watch?v=2SAUqTn3TrU) 2025-05-26T12:30Z 227K followers, 41.1K engagements "Minimum Spanning Tree Prims Algorithm Graph Data Structure Graph Theory Graph in DSA #dsa #graph #datastructure What is Graphs in DSA and why do we need it. We talked about it with the help of real world example and it will help everyone to get command over graphs. Day 19/60 of challenge. 1: Prims algorithm: https://www.geeksforgeeks.org/problems/minimum-spanning-tree/1itm_source=geeksforgeeks&itm_medium=article&itm_campaign=bottom_sticky_on_article 00:00 Introduction 00:46 Understanding Minimum Spanning Tree 5:51 Real World use cases of MST. 9:15 Prims Algorithm (Solving Minimum Spanning" [YouTube Link](https://youtube.com/watch?v=60WK9IFnFrg) 2024-06-27T00:30Z 228K followers, 27.5K engagements "JavaScript this Keyword Explained Call apply bind Javascript Full Course #22 Stop being confused by the this keyword in JavaScript In this complete guide we'll demystify this from first principles helping you build a rock-solid intuitive understanding of how it really works. We'll explore every context: method calls simple functions arrow functions strict mode vs. non-strict mode and how this behaves in both browser and Node.js environments. Next we'll master the essential tools for controlling this: the call() apply() and bind() methods. You'll learn not just what they do but why they are" [YouTube Link](https://youtube.com/watch?v=7tRyccjYgF0) 2025-11-13T13:30Z 235K followers, 12.3K engagements "JavaScript Strings & Dates Explained In-Depth Javascript Full Course #06 Ready to master two of the most essentialand most misunderstoodparts of JavaScript In this comprehensive in-depth lecture we will demystify Strings and the famously quirky Date object. First we'll explore every aspect of JavaScript Strings. You'll learn the difference between string literals and string objects why strings are immutable and how to use essential methods like .slice() .split() and .replace(). We'll also cover modern features like Template Literals that will make your code cleaner and more powerful. Next we" [YouTube Link](https://youtube.com/watch?v=8dgsUGEgPXo) 2025-10-01T13:30Z 235K followers, 22.7K engagements "Prototypes and class in Javascript Javascript Full Course #21 Are you tired of being confused by JavaScript's prototype system Do you use the class keyword but have a nagging feeling you don't really know how it works This video is the ultimate guide to finally understanding JavaScript's object model. We're going back to first principles. Forget memorizing rules. We'll start with a single JavaScript object and the problem of code repetition and logically build our way up to the modern class syntax uncovering the "why" at every step. By the end you won't just know how to use prototypes and" [YouTube Link](https://youtube.com/watch?v=9KwCG9aVwvQ) 2025-11-12T12:30Z 235K followers, [----] engagements "Callback Hell in JavaScript Async Programming Tutorial Javascript Full Course #18 🔥 What is Callback Hell in JavaScript Complete Tutorial for Beginners Learn everything about Callback Hell (also known as Pyramid of Doom) in JavaScript with real-world examples. This tutorial explains callback hell from first principles - perfect for beginners learning asynchronous programming TIMESTAMPS Introduction to Callback Hell JavaScript Single-Threaded Nature What are Callbacks Real-World Example: Food Delivery System 📌 WHAT YOU'LL LEARN ✅ What is Callback Hell and why it exists ✅ How JavaScript" [YouTube Link](https://youtube.com/watch?v=CTJLBCYod9E) 2025-10-23T12:30Z 235K followers, 13.7K engagements "Build Spotify Music Player App System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army fourth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we dive deep into the *Adapter Design Pattern* by solving a realworld problem: consuming a thirdparty data provider that returns XML and exposing it in our application as JSON. Youll" [YouTube Link](https://youtube.com/watch?v=DkLwFqbCsu8) 2025-06-04T13:16Z 222K followers, 14.6K engagements "The Ultimate DSA Revision Guide DSA 180daysofCode Data. Structure and Algorithm How to Become Baap Coder Revision Strategy for Code How to revise DSA" [YouTube Link](https://youtube.com/watch?v=ETbK2ceAUU4) 2024-02-24T12:34Z 215K followers, 23.9K engagements "Adapter Design Pattern Real-world use case + Code Design patterns in LLD Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army fourth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we dive deep into the *Adapter Design Pattern* by solving a realworld problem: consuming a thirdparty data provider that returns XML and exposing it in our" [YouTube Link](https://youtube.com/watch?v=FV3x69rpwm0) 2025-06-02T12:30Z 230K followers, 13.4K engagements "useRef Hook in React JS ReactJS Full Course #8 🚀 Master React useRef Hook - Complete Tutorial in Hindi In this video we'll learn the useRef hook from first principles No pattern memorization - pure understanding of WHY and HOW useRef works. 📚 What You'll Learn: ✅ What is useRef and why does it exist ✅ The fundamental problem useRef solves ✅ Two main use cases of useRef ✅ Storing mutable values (interval IDs timers counters) ✅ Accessing real DOM elements directly ✅ useRef vs useState - when to use what ✅ Building practical examples from scratch 🔥 Projects We Build: [--] Stopwatch with Start" [YouTube Link](https://youtube.com/watch?v=K7oDFdR3qA4) 2025-12-28T10:46Z 235K followers, [----] engagements "Flexbox in CSS One Project CSS Full course #04 Ready to finally stop fighting with CSS layouts In this comprehensive one-hour masterclass we will unlock the power of Flexbox the modern CSS layout system that will change the way you build websites forever. This is Part [--] of our CSS Full Course and it's where you'll gain the superpower to create clean responsive and perfectly aligned layouts with just a few lines of code. We'll start by exploring the painful "old world" of floats and hacks so you can truly appreciate the elegant solutions Flexbox provides. You'll learn the core concept of the" [YouTube Link](https://youtube.com/watch?v=KD5mNp8PTko) 2025-09-12T15:38Z 235K followers, 37.8K engagements "Inheritance & Polymorphism in OOPs Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Today is Day [--] for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this lecture we break down one of the most powerful concepts in Object-Oriented Programming *Inheritance and Polymorphism* with clear real-world analogies and practical code demonstrations. *What youll" [YouTube Link](https://youtube.com/watch?v=KGOEK0-XBIg) 2025-05-14T12:30Z 223K followers, 86.1K engagements "React Hook Form Zod Validation ReactJS Full Course #9 Form handling in React doesnt have to be messy or painful. In this complete 1-hour tutorial we deep dive into React Hook Form and Zod to build fast scalable and type-safe forms in React applications. This video is perfect if youre tired of uncontrolled inputs heavy re-renders or confusing validation logic. We start from the basics and gradually move to real-world form validation patterns used in production-level React apps. 🔍 What youll learn in this video ✅ Why React Hook Form is better than traditional form handling ✅ Understanding" [YouTube Link](https://youtube.com/watch?v=N2S-aVdfvXg) 2026-01-17T13:31Z 235K followers, [----] engagements "Deploy Your First Project Media Tag Multi Page Website HTML Full Course #05 Ready to bring your webpages to life and launch your very first website In this powerful 35-minute tutorial we'll move beyond static pages and dive into the exciting world of multimedia multi-page websites and real-world deployment First we'll master the HTML media tags learning how to natively embed video and audio players directly into your projects. Then we'll solve a critical challenge for any beginner: how to correctly structure and link multiple HTML pages to build a complete cohesive website. Finally we'll take" [YouTube Link](https://youtube.com/watch?v=NGYp1zCBthk) 2025-09-08T12:30Z 235K followers, 52.9K engagements "Why we are not Creating Productive Engineer You can enroll in Strike: https://strikes.in/" [YouTube Link](https://youtube.com/watch?v=NVPftS4tI1E) 2025-11-28T16:37Z 235K followers, 10.2K engagements "Bridge in a Graph Critical Connections in a Network Graph Data Structure Graph Theory Graph in DSA #dsa #graph #datastructure What is Graphs in DSA and why do we need it. We talked about it with the help of real world example and it will help everyone to get command over graphs. Day 21/60 of challenge. 1: Critical Connections in a Network: https://leetcode.com/problems/critical-connections-in-a-network/description/ Video will come on Mon-Fri at 6am in the morning DSA Course for free C++ Free Course Rohit Negi DSA Course C++ Coder Army DSA Course c++ Function in C++ Pointers in C++. Strings" [YouTube Link](https://youtube.com/watch?v=R_bFeK5MR6I) 2024-07-04T01:04Z 229K followers, 17K engagements "How React works under the Hood React reconciliation fibre diffing key ReactJS Full Course #6 How React Works Under the Hood React Reconciliation Fiber Diffing & Keys Explained Ever wondered how React updates your UI so fast What's happening behind the scenes when you click a button or change state In this video I break down React's internal architecture from first principles - no hand-waving no buzzwords just pure engineering concepts. **What You'll Learn:** 🔹 **Virtual DOM & React Elements** - What they actually are (not what tutorials claim) 🔹 **Reconciliation Algorithm** - How React" [YouTube Link](https://youtube.com/watch?v=UKn4aVlnB9A) 2025-12-16T13:25Z 235K followers, 13K engagements "Binary Tree Problems: Construct Tree from Inorder & Preorder Tree from Postorder and Inorder Trees Binary Tree Data Structure and Algorithm 180daysofcode 1: Construct Tree from Inorder & Preorder: https://www.geeksforgeeks.org/problems/construct-tree-1/1 2: Tree from Postorder and Inorder: https://www.geeksforgeeks.org/problems/tree-from-postorder-and-inorder/1 3: Check Tree Traversal: https://www.geeksforgeeks.org/problems/check-tree-traversal--141628/1 00:00 Introduction 00:30 Problem [--] - Construct a Tree from In Order and Pre Order 1:00 Trying to Build a Tree using only Pre Order 2:38" [YouTube Link](https://youtube.com/watch?v=XGnLaRwh0bY) 2024-02-29T00:30Z 222K followers, 39.2K engagements "Decorator Pattern Explained Real-world use case + Code Design patterns in LLD Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Third week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. Tired of rewriting classes every time you need a small change Welcome to the world of *Decorator Pattern* where adding new functionality is as easy as giving Mario a" [YouTube Link](https://youtube.com/watch?v=Z9rFlZClYNI) 2025-05-28T12:30Z 230K followers, 19.4K engagements "Animation in CSS from zero CSS Full course #07 Ready to move beyond static webpages and add some life and motion to your designs Welcome to Part [--] of our CSS Full Course In this fun and beginner-friendly tutorial we will unlock the magic of CSS Animations with @keyframes. This lecture is designed for absolute beginners. We'll start with the simple definition of what an animation is and build our knowledge from the ground up using a simple "flipbook" analogy. You'll learn the essential two-part system of creating animations: first defining the "storyboard" with @keyframes and second applying" [YouTube Link](https://youtube.com/watch?v=bOoNAPpBvpU) 2025-09-17T12:30Z 235K followers, 21.8K engagements "Launching Data Structure and Algorithm and GenAi course Launching STRIKE If you are intersted in DSA and GenAI you can enroll in STRIKE Buy Course: https://strikes.in/course/combo Download app: https://play.google.com/store/apps/detailsid=com.rohit.negi Class timimg: 9pm DSA start date: mon-tue-thu(Live Class) GenAI Course: wed-fri Exclusive feature limited to first [---] people only. Happy Diwali Everyone" [YouTube Link](https://youtube.com/watch?v=hGyjZOcmfyM) 2025-10-19T04:30Z 235K followers, 10.9K engagements "File Path in HTML HTML BoilerPlate Code DIV + Class + ID HTML Full Course #03 Ready to move beyond single tags and start building real structured web pages This is the tutorial you've been waiting for In this video we unlock the secrets of professional HTML structure teaching you the foundational concepts that separate beginners from job-ready developers. We'll cover how files on a website actually link together and how to write the essential "boilerplate" code that every single HTML page needs. By the end you'll understand how to use divs and semantic tags like header footer and main to" [YouTube Link](https://youtube.com/watch?v=k78lNSAB8VY) 2025-09-04T12:30Z 227K followers, 44.6K engagements "Lecture 95: Implement two stacks in an array N Stack in an Array Stack 180daysofCode Solve Many Problem on Stack 1: Implement two stacks in an array: https://www.geeksforgeeks.org/problems/implement-two-stacks-in-an-array/1utm_source=geeksforgeeks&utm_medium=ml_article_practice_tab&utm_campaign=article_practice_tab 2: N Stack in an array: https://www.codingninjas.com/studio/problems/n-stacks-in-an-array_1164271leftPanelTabValue=PROBLEM 00:00 Intro 00:48 Problem [--] - Implement two Stack in an Array(Approach 1) 03:27 Approach [--] - Implement two Stack in an Array 14:22 Code Part - Implement two" [YouTube Link](https://youtube.com/watch?v=ktUYEWjqRI8) 2024-02-13T00:30Z 224K followers, 22.8K engagements "Queue Hard: Sliding Window Maximum Minimum Number of K Consecutive Bit Flips Queue 180daysofCode Solve Many Problem on Queue DSA 1: Sliding Window Maximum: https://leetcode.com/problems/sliding-window-maximum/description/ 2: Minimum Number of K Consecutive Bit Flips: https://leetcode.com/problems/minimum-number-of-k-consecutive-bit-flips/description/ HomeWork: 1: Gas Station: https://leetcode.com/problems/gas-station/description/ 2: Count Subarrays With Fixed Bounds: https://leetcode.com/problems/count-subarrays-with-fixed-bounds/description/ 00:00 Introduction 00:44 Problem [--] - Sliding" [YouTube Link](https://youtube.com/watch?v=loLfzoeeyEQ) 2024-02-20T00:30Z 219K followers, 22K engagements "Event Loop in Javascript Why JS is Single threaded and synchronous Javascript Full Course #17 Ever wondered why JavaScript is called a single-threaded language even though it handles asynchronous tasks like setTimeout() API calls and event listeners so efficiently In this 45-minute deep-dive well decode the core mechanism behind JavaScripts concurrency model exploring the Call Stack Web APIs Callback Queue and the Event Loop in a way that youll never forget. 💡 What Youll Learn in This Video: Why JavaScript is single-threaded and synchronous The truth behind JavaScripts non-blocking behavior" [YouTube Link](https://youtube.com/watch?v=rsepF1ugeC8) 2025-10-22T12:31Z 235K followers, 13.4K engagements "Prototype and Classes in Javascript Javascript Full Course #21 Are you using await outside of async functions You might be blocking your ENTIRE application without knowing it In this video I explain why top-level await can be a performance disaster and show you the RIGHT way to handle asynchronous code in JavaScript. TIMESTAMPS: The Problem - Code That Looks Right But Isn't What is Top-Level Await Live Demo - How It Blocks Everything Why This Destroys Performance 🔥 KEY TAKEAWAYS: ✅ Top-level await blocks your ENTIRE module ✅ Other code has to wait for your fetch to complete ✅ Your app" [YouTube Link](https://youtube.com/watch?v=sYpmLmMj9Co) 2025-11-11T12:31Z 218K followers, [----] engagements "Proxy Design Pattern Virtual Proxy Protection Proxy Remote Proxy Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Fifth week for** #lowleveldesign(https://www.youtube.com/hashtag/lowleveldesign) #systemdesign(https://www.youtube.com/hashtag/systemdesign) #8weeksLLdchallenge(https://www.youtube.com/hashtag/8weekslldchallenge). We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. Welcome back to our System" [YouTube Link](https://youtube.com/watch?v=xuT6OOYVJTQ) 2025-06-09T12:31Z 217K followers, [----] engagements "STRIKE is Coming Hello COder army" [YouTube Link](https://youtube.com/watch?v=zEs9uujmHVQ) 2025-10-17T16:56Z 235K followers, 13.6K engagements "How Whatsapp is end to end Encrypted" [YouTube Link](https://youtube.com/watch?v=zN65FeBWW0c) 2025-04-15T15:18Z 228K followers, 20.5K engagements "Java + Spring Boot Complete Course FREE in [----] Java Full Course FREE Java & Spring Boot Course Coming to YouTube The most requested topic is finally here - and it's **completely FREE** for the Coder Army community. In [----] while everyone's debating the next JavaScript framework **enterprise applications worth billions still run on Java and Spring Boot**. From fintech to e-commerce to cloud platforms - this is the stack powering real-world production systems. **Why this course exists:** Most Java tutorials teach you to memorize Spring Boot annotations without understanding WHY they exist." [YouTube Link](https://youtube.com/watch?v=pxg7vnuMPnE) 2026-02-08T08:08Z 235K followers, 31.1K engagements "UseContext Hook State Lifting Props Drilling ReactJS Full Course #10 🔥 In this video you'll learn React Context API from scratch using first principles thinking **What You'll Learn:** ✅ What is State Lifting and why it's needed ✅ The Prop Drilling problem with real examples ✅ How Context API solves prop drilling ✅ Creating and using Context (React [--] new syntax) ✅ useContext hook explained with mental models ✅ Complete e-commerce cart example ✅ Best practices and performance optimization **Topics Covered:** - State Lifting between sibling components - Prop Drilling and its problems -" [YouTube Link](https://youtube.com/watch?v=kVtrCJLJx70) 2026-01-31T10:22Z 235K followers, [----] engagements "Neural Network for Beginners From Zero to Understanding Deep Learning Learn Neural Networks from scratch in this beginner-friendly tutorial. We start with the fundamental question - when do we actually need neural networks Then build up every concept step by step using first principles thinking. What you'll learn: - Why neural networks exist (when we can't define rules manually) - Perceptron - the simplest building block of deep learning - Weights Bias and what they actually do - How neural networks learn - the weight update formula - Learning rate and why it matters - Gradient descent -" [YouTube Link](https://youtube.com/watch?v=SY0_i6Jyhuw) 2026-01-26T04:30Z 235K followers, 14.5K engagements "React Hook Form Zod Validation ReactJS Full Course #9 Form handling in React doesnt have to be messy or painful. In this complete 1-hour tutorial we deep dive into React Hook Form and Zod to build fast scalable and type-safe forms in React applications. This video is perfect if youre tired of uncontrolled inputs heavy re-renders or confusing validation logic. We start from the basics and gradually move to real-world form validation patterns used in production-level React apps. 🔍 What youll learn in this video ✅ Why React Hook Form is better than traditional form handling ✅ Understanding" [YouTube Link](https://youtube.com/watch?v=N2S-aVdfvXg) 2026-01-17T13:31Z 235K followers, [----] engagements "How to master Web development and system Design in [----] HUGE NEW YEAR OFFER - Web Development Course Launch Doston were kicking off [----] with an exclusive discount just for you 🎉 Limited Time Offers: 🔥 Web Development Course - Just [----] (Early Bird Price) Link: https://rohittnegi.akamai.net.in/new-courses/15 📚 Web Development + System Design Bundle - Only [----] Link: https://rohittnegi.akamai.net.in/new-courses/16 Coder army app: https://play.google.com/store/apps/detailsid=com.rohit.negi Coder army website: coderarmy.in Whats Inside: Learn Web Development the Coder Army way - using" [YouTube Link](https://youtube.com/watch?v=MlVCchOMjoY) 2026-01-01T12:13Z 235K followers, 17.9K engagements "useRef Hook in React JS ReactJS Full Course #8 🚀 Master React useRef Hook - Complete Tutorial in Hindi In this video we'll learn the useRef hook from first principles No pattern memorization - pure understanding of WHY and HOW useRef works. 📚 What You'll Learn: ✅ What is useRef and why does it exist ✅ The fundamental problem useRef solves ✅ Two main use cases of useRef ✅ Storing mutable values (interval IDs timers counters) ✅ Accessing real DOM elements directly ✅ useRef vs useState - when to use what ✅ Building practical examples from scratch 🔥 Projects We Build: [--] Stopwatch with Start" [YouTube Link](https://youtube.com/watch?v=K7oDFdR3qA4) 2025-12-28T10:46Z 235K followers, [----] engagements "React Memo useMemo and useCallback Hook in React ReactJS Full Course #7 React Performance Optimization: Master React.memo useMemo & useCallback Hooks Complete Tutorial 🔥 Learn React optimization hooks from first principles This comprehensive guide covers React.memo useMemo and useCallback with real-world examples. 📚 What You'll Learn: ✅ React.memo - Prevent unnecessary child component re-renders ✅ useMemo - Cache expensive calculations and object references ✅ useCallback - Keep function references stable across renders ✅ When to use (and NOT use) these optimization hooks ✅ Common mistakes" [YouTube Link](https://youtube.com/watch?v=0-hl7me5dk4) 2025-12-20T10:30Z 235K followers, [----] engagements "How React works under the Hood React reconciliation fibre diffing key ReactJS Full Course #6 How React Works Under the Hood React Reconciliation Fiber Diffing & Keys Explained Ever wondered how React updates your UI so fast What's happening behind the scenes when you click a button or change state In this video I break down React's internal architecture from first principles - no hand-waving no buzzwords just pure engineering concepts. **What You'll Learn:** 🔹 **Virtual DOM & React Elements** - What they actually are (not what tutorials claim) 🔹 **Reconciliation Algorithm** - How React" [YouTube Link](https://youtube.com/watch?v=UKn4aVlnB9A) 2025-12-16T13:25Z 235K followers, 13K engagements "useEffect Hook in React Hook in JS ReactJS Full Course #5 Is the useEffect hook a constant source of confusion Do you find yourself creating infinite loops or struggling with when and why your effects are running You've come to the right place. In this deep-dive tutorial we are going to deconstruct the useEffect hook from absolute first principles. We're moving beyond the syntax to build a powerful mental model of what an "effect" truly is and why React needs a special hook to manage it. We'll start by breaking our code on purpose to see why side effects can't live in the component body and" [YouTube Link](https://youtube.com/watch?v=AM7IbEW4apk) 2025-12-06T12:30Z 235K followers, 13.1K engagements "Why we are not Creating Productive Engineer You can enroll in Strike: https://strikes.in/" [YouTube Link](https://youtube.com/watch?v=NVPftS4tI1E) 2025-11-28T16:37Z 235K followers, 10.2K engagements "React useState Hook The Complete Guide for Beginners What is hooks ReactJS Full Course #4 Learn the useState Hook in React from absolute first principles This complete tutorial explains why useState exists how it works internally and how to use it effectively in your React applications. 🎯 What You'll Learn: Why normal JavaScript variables don't work in React components What useState hook is and why it's needed How React stores state internally Understanding re-renders and component lifecycle State updates are asynchronous - what this means Multiple setState calls and the updater function" [YouTube Link](https://youtube.com/watch?v=ctks8tizcco) 2025-11-28T12:30Z 235K followers, 12.5K engagements "React + Vite Complete Setup and Deployment npm Plugins node Bundlers ReactJS Full Course #3 Learn React with Vite from scratch This comprehensive tutorial covers everything you need to know about setting up a modern React development environment using Vite. 🔥 What You'll Learn: Complete React + Vite setup (both automated and manual) npm vs npx - Understanding the difference and when to use each How bundlers work and why you need them What Vite plugins do and why they're necessary esbuild vs Babel - Who converts your JSX and why Import/Export system in JavaScript Package.json deep dive" [YouTube Link](https://youtube.com/watch?v=2t8Zi2aw92E) 2025-11-24T12:30Z 235K followers, 15.2K engagements "React JSX Babel React Components & Props Explained from Scratch ReactJS Full Course #2 Learn React the RIGHT way - no memorization just pure understanding In this video we dive deep into React fundamentals using a first-principles approach. Instead of just showing you "how" to write code we explain "why" things work the way they do. 🔥 What You'll Learn in This Video: ✅ JSX - What It Actually Is JSX is NOT HTML - proof with real examples Why className instead of class Why style is an object not a string Self-closing tags requirement JavaScript expressions inside ✅ Babel - The Transpiler What" [YouTube Link](https://youtube.com/watch?v=JdFUNKGwWLw) 2025-11-21T12:30Z 235K followers, 26.7K engagements "ReactJS Full Course What is ReactJS React JS Tutorial for Beginners ReactJS Full Course #1 Welcome to the first episode of the only React JS course you'll ever need. If you've mastered HTML CSS and JavaScript but are tired of tutorials that just show you the 'how' without the 'why' you're in the right place. We're throwing out memorization and building a deep fundamental understanding of React from First Principles. In this first video we go back to the beginning. Before we write a single line of JSX we explore the core problem React was created to solve. We'll compare the old imperative way" [YouTube Link](https://youtube.com/watch?v=TkHH-IHsEKQ) 2025-11-19T12:30Z 235K followers, 82.8K engagements "JavaScript this Keyword Explained Call apply bind Javascript Full Course #22 Stop being confused by the this keyword in JavaScript In this complete guide we'll demystify this from first principles helping you build a rock-solid intuitive understanding of how it really works. We'll explore every context: method calls simple functions arrow functions strict mode vs. non-strict mode and how this behaves in both browser and Node.js environments. Next we'll master the essential tools for controlling this: the call() apply() and bind() methods. You'll learn not just what they do but why they are" [YouTube Link](https://youtube.com/watch?v=7tRyccjYgF0) 2025-11-13T13:30Z 235K followers, 12.3K engagements "Prototypes and class in Javascript Javascript Full Course #21 Are you tired of being confused by JavaScript's prototype system Do you use the class keyword but have a nagging feeling you don't really know how it works This video is the ultimate guide to finally understanding JavaScript's object model. We're going back to first principles. Forget memorizing rules. We'll start with a single JavaScript object and the problem of code repetition and logically build our way up to the modern class syntax uncovering the "why" at every step. By the end you won't just know how to use prototypes and" [YouTube Link](https://youtube.com/watch?v=9KwCG9aVwvQ) 2025-11-12T12:30Z 235K followers, [----] engagements "Async Await in Javascript Javascript Full Course #20 Are you using await outside of async functions You might be blocking your ENTIRE application without knowing it In this video I explain why top-level await can be a performance disaster and show you the RIGHT way to handle asynchronous code in JavaScript. TIMESTAMPS: The Problem - Code That Looks Right But Isn't What is Top-Level Await Live Demo - How It Blocks Everything Why This Destroys Performance 🔥 KEY TAKEAWAYS: ✅ Top-level await blocks your ENTIRE module ✅ Other code has to wait for your fetch to complete ✅ Your app becomes slower" [YouTube Link](https://youtube.com/watch?v=AyBpssNYB6g) 2025-11-10T12:30Z 235K followers, 13.4K engagements "Promises in Javascript JSON vs JS Object Javascript Full Course #19 Learn JavaScript Promises from First Principles This complete tutorial covers everything from basic async concepts to advanced promise methods. 🎯 What You'll Learn: ✅ What are Promises and why do we need them ✅ Understanding Asynchronous JavaScript ✅ The Callback Hell problem explained ✅ Creating and consuming Promises ✅ Promise states (Pending Fulfilled Rejected) ✅ Promise chaining - write clean async code ✅ Error handling with .catch() and .finally() ✅ Promise.all() Promise.race() Promise.allSettled() Promise.any() ✅" [YouTube Link](https://youtube.com/watch?v=LYe1my0KkPo) 2025-10-28T12:59Z 235K followers, 19.1K engagements "Callback Hell in JavaScript Async Programming Tutorial Javascript Full Course #18 🔥 What is Callback Hell in JavaScript Complete Tutorial for Beginners Learn everything about Callback Hell (also known as Pyramid of Doom) in JavaScript with real-world examples. This tutorial explains callback hell from first principles - perfect for beginners learning asynchronous programming TIMESTAMPS Introduction to Callback Hell JavaScript Single-Threaded Nature What are Callbacks Real-World Example: Food Delivery System 📌 WHAT YOU'LL LEARN ✅ What is Callback Hell and why it exists ✅ How JavaScript" [YouTube Link](https://youtube.com/watch?v=CTJLBCYod9E) 2025-10-23T12:30Z 235K followers, 13.7K engagements "Event Loop in Javascript Why JS is Single threaded and synchronous Javascript Full Course #17 Ever wondered why JavaScript is called a single-threaded language even though it handles asynchronous tasks like setTimeout() API calls and event listeners so efficiently In this 45-minute deep-dive well decode the core mechanism behind JavaScripts concurrency model exploring the Call Stack Web APIs Callback Queue and the Event Loop in a way that youll never forget. 💡 What Youll Learn in This Video: Why JavaScript is single-threaded and synchronous The truth behind JavaScripts non-blocking behavior" [YouTube Link](https://youtube.com/watch?v=rsepF1ugeC8) 2025-10-22T12:31Z 235K followers, 13.4K engagements "10 JavaScript Projects for Beginners Learn JS by Building Real Apps Javascript Full Course #16 🚀 Master JavaScript by building [--] real-world beginner projects from scratch Perfect for anyone learning web development and JavaScript fundamentals. 📌 [--] JavaScript Projects You'll Build: [--]. ✨ Random Quote Generator - Display inspirational quotes [--]. 🎨 Background Color Changer - Interactive color switcher [--]. 💕 Love Calculator - Fun relationship compatibility checker [--]. 💰 Income Tax Calculator - Calculate taxes instantly [--]. Digital Clock - Real-time clock display [--]. Countdown Timer - Event" [YouTube Link](https://youtube.com/watch?v=dQDteO0RXrc) 2025-10-21T12:42Z 235K followers, 34.4K engagements "Launching Data Structure and Algorithm and GenAi course Launching STRIKE If you are intersted in DSA and GenAI you can enroll in STRIKE Buy Course: https://strikes.in/course/combo Download app: https://play.google.com/store/apps/detailsid=com.rohit.negi Class timimg: 9pm DSA start date: mon-tue-thu(Live Class) GenAI Course: wed-fri Exclusive feature limited to first [---] people only. Happy Diwali Everyone" [YouTube Link](https://youtube.com/watch?v=hGyjZOcmfyM) 2025-10-19T04:30Z 235K followers, 10.9K engagements "STRIKE is Coming Hello COder army" [YouTube Link](https://youtube.com/watch?v=zEs9uujmHVQ) 2025-10-17T16:56Z 235K followers, 13.6K engagements "Events in Javascript Even and Event handler in Javascript Javascript Full Course #15 Ready to master the core of web interactivity In this in-depth lecture we will demystify JavaScript Events going far beyond a simple click handler. You'll learn the fundamental concepts of Event Bubbling Event Capturing and the powerful Event Delegation pattern that professional developers use to write efficient scalable code. First we'll break down the three core components of any event: the target the event type and the event handler. We'll cover the modern and correct way to listen for user actions using" [YouTube Link](https://youtube.com/watch?v=CGjHpnm8TeE) 2025-10-16T12:30Z 235K followers, 17.8K engagements "CRUD Operation in DOM The Document Object Model (DOM) Explained Javascript Full Course #14 Ready to make your web pages interactive In this complete in--depth guide we will master the JavaScript DOM (Document Object Model). This is the crucial bridge that allows your JavaScript code to see change and react to your HTML content. If you want to become a frontend developer this is a topic you absolutely must know. We'll start from "first principles" explaining what the DOM is and why it's essential for all modern web development. You'll learn all the different ways to select any element on your" [YouTube Link](https://youtube.com/watch?v=2jVOkYiAl2s) 2025-10-15T12:31Z 235K followers, 19.3K engagements "JavaScript DOM Manipulation The Document Object Model (DOM) Explained Javascript Full Course #13 Ready to make your web pages interactive In this complete in-depth guide we will master the JavaScript DOM (Document Object Model). This is the crucial bridge that allows your JavaScript code to see change and react to your HTML content. We'll start from "first principles" explaining what the DOM is and why it's essential for all modern web development. You'll learn all the different ways to select any element on your page from the classic getElementById to the powerful and modern querySelector." [YouTube Link](https://youtube.com/watch?v=wLp99HGG8GQ) 2025-10-14T12:31Z 235K followers, 20.7K engagements "Map Filter Reduce Set & Map in Javascript Javascript Full Course #12 Are you ready to stop writing clumsy for loops and start writing clean powerful and modern JavaScript This in-depth lecture is your ultimate guide to the most essential methods and data structures in the language: Map Filter Reduce Set and Map. First we will master the "big three" of functional programming: .map() .filter() and .reduce(). You'll learn how to use these higher-order functions to transform select and aggregate data with concise readable one-line commands. We'll use a real-world products dataset to demonstrate" [YouTube Link](https://youtube.com/watch?v=UByPRYaMEkI) 2025-10-10T12:30Z 235K followers, 19.3K engagements "Closure in Javascript Scope and High order function in javascript Javascript Full Course #11 Ready to unlock the concepts that separate beginner JavaScript developers from the pros In this in-depth lecture we will demystify three of the most powerful and foundational features of the language: Scope Closures and Higher-Order Functions. First we'll build a rock-solid mental model of Scope. You'll learn the "one-way glass" rule of Global Function and Block scope and understand how the JavaScript engine knows where to find your variables. This is the key that unlocks everything else. Next we'll" [YouTube Link](https://youtube.com/watch?v=UBCPtXXMAWs) 2025-10-09T12:30Z 235K followers, 18.4K engagements "How JavaScript Code Runs Hoisting in Javascript Javascript Full Course #10 Ever wonder what actually happens when you run a line of JavaScript Go beyond just writing code and truly understand the "magic" behind the scenes. In this detailed step-by-step guide we'll break down the entire JavaScript execution model from first principles. This is the foundational knowledge that separates beginner developers from senior engineers. By the end of this video you will finally have that "aha" moment with concepts like the Call Stack Hoisting the Memory Heap and the Execution Context. WHAT YOU WILL" [YouTube Link](https://youtube.com/watch?v=ijPq-u3y9cs) 2025-10-08T12:31Z 235K followers, 17.5K engagements "JavaScript Functions Explained In-Depth Javascript Full Course #09 Ready to unlock the most powerful and fundamental building block in all of JavaScript In this complete in-depth guide we will master JavaScript Functions from the ground up moving from the absolute basics to the advanced concepts that professional developers use every day. We start from "first principles" explaining what a function is and why we need them with the DRY (Don't Repeat Yourself) principle. You'll learn the core anatomy of a function: parameters arguments and the return keyword. We'll demystify the different ways" [YouTube Link](https://youtube.com/watch?v=iY8LlFRLpXQ) 2025-10-07T12:30Z 235K followers, 23.9K engagements "JavaScript Objects Explained In-Depth Javascript Full Course #08 Ready to master the most fundamental building block in all of JavaScript In this complete in-depth guide we will explore everything you need to know about JavaScript Objects from the absolute basics of creating them to the advanced modern techniques used by professional developers. We start from "first principles" explaining what an object is and how to perform basic CRUD (Create Read Update Delete) operations. We'll demystify the powerful this keyword and show you the best ways to loop over an object's properties using modern" [YouTube Link](https://youtube.com/watch?v=iuZkPCBBV5U) 2025-10-06T12:31Z 235K followers, 28.8K engagements "JavaScript Arrays Explained In-Depth Javascript Full Course #07 Ready to master the most powerful and versatile data structure in JavaScript In this complete in-depth guide we will explore everything you need to know about JavaScript Arrays from the absolute basics to the advanced modern techniques used by professional developers. We start from "first principles" explaining what an array is and how to create and access its elements. We then cover essential methods for modifying arrays like .push() .pop() and the powerful .splice(). You'll learn the best ways to loop over arrays including the" [YouTube Link](https://youtube.com/watch?v=fuA8BQkQO_E) 2025-10-03T12:30Z 235K followers, 26.2K engagements "JavaScript Strings & Dates Explained In-Depth Javascript Full Course #06 Ready to master two of the most essentialand most misunderstoodparts of JavaScript In this comprehensive in-depth lecture we will demystify Strings and the famously quirky Date object. First we'll explore every aspect of JavaScript Strings. You'll learn the difference between string literals and string objects why strings are immutable and how to use essential methods like .slice() .split() and .replace(). We'll also cover modern features like Template Literals that will make your code cleaner and more powerful. Next we" [YouTube Link](https://youtube.com/watch?v=8dgsUGEgPXo) 2025-10-01T13:30Z 235K followers, 22.7K engagements Limited data mode. Full metrics available with subscription: lunarcrush.com/pricing
@coderarmy9 Coder Army
Coder Army posts on YouTube about army, javascript, tutorial, what is the most. They currently have [-------] followers and [---] posts still getting attention that total [------] engagements in the last [--] hours.
Engagements: [------] #
- [--] Week [------] +2.30%
- [--] Month [-------] -14%
- [--] Months [---------] +51%
- [--] Year [---------] +320%
Mentions: [--] #
- [--] Month [--] +3.50%
- [--] Months [--] +25%
- [--] Year [---] +407%
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- [--] Week [-------] +0.86%
- [--] Month [-------] +2.60%
- [--] Months [-------] +20%
- [--] Year [-------] +39%
CreatorRank: [-------] #
Social Influence
Social category influence technology brands stocks finance countries social networks travel destinations
Social topic influence army #740, javascript #128, tutorial, what is #3362, the most, build #4866, code #5070, how to, this is, level #3610
Top accounts mentioned or mentioned by @rohit_negi @media @vitejspluginreact @keyframes @codewithzame
Top assets mentioned Alphabet Inc Class A (GOOGL)
Top Social Posts
Top posts by engagements in the last [--] hours
"Euler Path and Euler Circuit in a Graph Graph Data Structure Graph Theory Graph in DSA #dsa #graph #datastructure What is Graphs in DSA and why do we need it. We talked about it with the help of real world example and it will help everyone to get command over graphs. Day 17/60 of challenge. 1: Euler Path: https://www.geeksforgeeks.org/problems/euler-circuit-and-path/1page=3&difficulty%5B%5D=1&category%5B%5D=Graph&sortBy=submissions 00:00 Introduction 00:46 Intro to Euler Path with Story 3:48 Understanding Euler Circuit 18:21 Whether Euler Circuit/Euler Path Exist or not 53:03 Code Part -"
YouTube Link 2024-06-20T00:30Z 235K followers, 14.3K engagements
"Introduction To System Design Welcome to Lecture [--] of the Low-Level Design (LLD) Masterclass. Today is Day [--] for #8weeksLLdChallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this foundational session we'll cover: [--]. What exactly is Low-Level Design (LLD) [--]. How does LLD differ from Data Structures & Algorithms (DSA) [--]. Understanding the relationship and differences between DSA LLD and High-Level Design (HLD). Join Coder Army"
YouTube Link 2025-05-12T12:29Z 235K followers, 424.9K engagements
"React JSX Babel React Components & Props Explained from Scratch ReactJS Full Course #2 Learn React the RIGHT way - no memorization just pure understanding In this video we dive deep into React fundamentals using a first-principles approach. Instead of just showing you "how" to write code we explain "why" things work the way they do. 🔥 What You'll Learn in This Video: ✅ JSX - What It Actually Is JSX is NOT HTML - proof with real examples Why className instead of class Why style is an object not a string Self-closing tags requirement JavaScript expressions inside ✅ Babel - The Transpiler What"
YouTube Link 2025-11-21T12:30Z 235K followers, 26.7K engagements
"Build Google Docs A Real-World LLD Project Document Editor LLD Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Second week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we apply LLD principles using OOPS and SOLID design concepts to build a Document Editor think Google Docs but designed from scratch by you 💻 After teaching the"
YouTube Link 2025-05-20T12:30Z 235K followers, 63.9K engagements
"CSS Box Model & Display Property Content Margin Padding Border CSS Full Course #02 Ready to understand why some HTML elements stack on top of each other while others sit side-by-side This is the tutorial that will finally make CSS layouts "click" for you Welcome to Part [--] of our CSS Full Course. In this deep-dive lecture we'll master two of the most fundamental concepts in all of CSS: the display property and the Box Model. First we'll uncover the critical difference between block and inline elements and why it dictates the entire flow of your webpage. You'll learn how to take control of this"
YouTube Link 2025-09-10T12:30Z 235K followers, 37.3K engagements
"OOPs Real-World Examples OOPs Pillars Abstraction Encapsulation Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Today is Day [--] for #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we dive into the evolution of programming and lay the foundation for mastering Object-Oriented Programming (OOP) a core pillar of Low-Level Design. Whats Covered in This Video: - Brief"
YouTube Link 2025-05-13T12:30Z 235K followers, 156.8K engagements
"AVL Tree in Data Structure AVL Tree Insertion AVL Tree Search AVL Tree Rotation Trees AVL Tree Data Structure and Algorithm 180daysofcode #dsa #datastructures #leetcode 1: Insertion in AVL Tree: https://www.geeksforgeeks.org/problems/avl-tree-insertion/1itm_source=geeksforgeeks&itm_medium=article&itm_campaign=bottom_sticky_on_article 2: Deletion in AVL Tree: https://www.geeksforgeeks.org/problems/avl-tree-deletion/1itm_source=geeksforgeeks&itm_medium=article&itm_campaign=bottom_sticky_on_article 00:00 Introduction 01:32 Understanding AVL Tree /Limitations of BST 13:28 Understanding AVL Tree"
YouTube Link 2024-03-18T00:30Z 235K followers, 82.1K engagements
"ReactJS Full Course What is ReactJS React JS Tutorial for Beginners ReactJS Full Course #1 Welcome to the first episode of the only React JS course you'll ever need. If you've mastered HTML CSS and JavaScript but are tired of tutorials that just show you the 'how' without the 'why' you're in the right place. We're throwing out memorization and building a deep fundamental understanding of React from First Principles. In this first video we go back to the beginning. Before we write a single line of JSX we explore the core problem React was created to solve. We'll compare the old imperative way"
YouTube Link 2025-11-19T12:30Z 235K followers, 82.8K engagements
"JavaScript Variables & Data Types Explained(var let const mutable) Javascript Full Course #02 Are you ready to build a rock-solid foundation in JavaScript In this comprehensive one-hour lecture we go far beyond the basics of declaring variables. We take a deep dive into the "why" behind JavaScript's data types exploring the critical concepts of mutability immutability and how the JavaScript engine actually manages your data in memory. This is not a superficial tutorial. We'll explore the difference between var let and const from a technical perspective understand why primitives are immutable"
YouTube Link 2025-09-25T12:30Z 235K followers, 48K engagements
"SOLID Design Principles Complete Guide with Code Examples In this video we dive deep into the SOLID Principles the foundation of scalable and maintainable software design. Whether you're a beginner or an experienced developer this guide will help you understand and master: Introduction to SOLID Principles Single Responsibility Principle (SRP) Open/Closed Principle (OCP) Liskov Substitution Principle (LSP) Complete Code Examples Explained Join Coder Army Whatsapp Group: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Code and Notes: Github :"
YouTube Link 2025-05-16T12:30Z 235K followers, 135.4K engagements
"Make Your Website Responsive Media Queries Overflow Box Shadows explain CSS Full course #06 Ready to make your websites truly professional In this packed CSS tutorial we'll master three essential concepts that will elevate your projects: Responsive Design with Media Queries the overflow property and creating depth with box-shadow. This is Part [--] of our complete CSS course First we'll tackle the most critical skill in modern web development: making your layouts responsive. You'll learn how to use Media Queries to make your designs adapt perfectly to any screen size from a small mobile phone to"
YouTube Link 2025-09-16T12:30Z 235K followers, 25K engagements
"Binary Search Tree: LCA of BST Find Common Nodes in [--] BST Check whether BST contains Dead End Trees Binary Search Tree Data Structure and Algorithm 180daysofcode #dsa #datastructures 1: Lowest Common Ancestor in a BST : https://www.geeksforgeeks.org/problems/lowest-common-ancestor-in-a-bst/1itm_source=geeksforgeeks&itm_medium=article&itm_campaign=bottom_sticky_on_article 2: Print BST elements in given range: https://www.geeksforgeeks.org/problems/print-bst-elements-in-given-range/1page=1&difficulty%5B%5D=0&category%5B%5D=Binary%2520Search%2520Tree&sortBy=submissions 3: Check whether BST"
YouTube Link 2024-03-12T00:51Z 235K followers, 23.5K engagements
"HTML Forms From Beginner to Advance HTML Full Course #04 Ready to finally master the most important interactive element of the web This is your complete one-hour masterclass on HTML Forms. We'll go from the absolute basics to building complex real-world registration and order forms covering every essential tag and attribute along the way. If you've ever been confused about the difference between id name and for or wondered how to create radio buttons dropdowns and file uploads this is the video for you. We don't just show you the tags; we explain why they exist and how they work together"
YouTube Link 2025-09-05T12:30Z 235K followers, 52.5K engagements
"Build a Complete Portfolio Website with HTML & CSS CSS Full course #09 Ready to build the most important project of your web development journey In this complete step-by-step tutorial we will build a professional and fully responsive personal portfolio website from scratch using only HTML and CSS. This is the ultimate project to showcase your skills to friends family and future employers We'll use modern CSS techniques like Grid and Flexbox to create a stunning two-column layout with a "sticky" sidebar just like the professional portfolios you see online. We'll implement a sophisticated"
YouTube Link 2025-09-22T13:30Z 235K followers, 64.7K engagements
"SOLID Design Principles part [--] Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Second week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we dive deep into the remaining SOLID Principles (LSP-examples ISP DIP) the foundation of scalable and maintainable software design. Whether you're a beginner or an experienced developer this guide"
YouTube Link 2025-05-19T12:31Z 235K followers, 65.6K engagements
"Binary Search Tree in Data Structure Implementation Insertion Deletion and Search Trees Binary Search Tree Data Structure and Algorithm 180daysofcode #dsa #datastructures 1: Delete a node from BST: https://www.geeksforgeeks.org/problems/delete-a-node-from-bst/1page=1&difficulty%5B%5D=1&category%5B%5D=Binary%2520Search%2520Tree&sortBy=submissions 2: Search a node in BST: https://www.geeksforgeeks.org/problems/search-a-node-in-bst/1page=1&difficulty%5B%5D=-1&category%5B%5D=Binary%2520Search%2520Tree&sortBy=submissions 3: Insert a node in a BST:"
YouTube Link 2024-03-06T00:30Z 235K followers, 101.3K engagements
"Lecture 78: Introduction To Linked List Traversal and Insertion in a Linked List Introduction to Linked List What is Linked List Singly Linked List Insertion in a Singly Linked List 00:00 Introduction to LinkedList 00:50 [--] crore Example for LinkedList 07:43 Example [--] - Array and Singly LinkedList 12:22 Defining LinkedList using Classes 15:25 How to create a Node 20:45 Operations on LinkedLists 21:58 Ways of Insertion on LinkedLists 31:32 Code Part - Creating LinkedList 33:39 Understanding Insertion at Start on LinkedList 43:45 Traversing On LinkedList 48:00 Code Part - Insertion On LinkedList"
YouTube Link 2024-01-15T00:30Z 235K followers, 359.3K engagements
"Promises in Javascript JSON vs JS Object Javascript Full Course #19 Learn JavaScript Promises from First Principles This complete tutorial covers everything from basic async concepts to advanced promise methods. 🎯 What You'll Learn: ✅ What are Promises and why do we need them ✅ Understanding Asynchronous JavaScript ✅ The Callback Hell problem explained ✅ Creating and consuming Promises ✅ Promise states (Pending Fulfilled Rejected) ✅ Promise chaining - write clean async code ✅ Error handling with .catch() and .finally() ✅ Promise.all() Promise.race() Promise.allSettled() Promise.any() ✅"
YouTube Link 2025-10-28T12:59Z 235K followers, 19.1K engagements
"React useState Hook The Complete Guide for Beginners What is hooks ReactJS Full Course #4 Learn the useState Hook in React from absolute first principles This complete tutorial explains why useState exists how it works internally and how to use it effectively in your React applications. 🎯 What You'll Learn: Why normal JavaScript variables don't work in React components What useState hook is and why it's needed How React stores state internally Understanding re-renders and component lifecycle State updates are asynchronous - what this means Multiple setState calls and the updater function"
YouTube Link 2025-11-28T12:30Z 235K followers, 12.5K engagements
"Graph Data Structure Real world Example to Explain Graph Introduction to graph Graph Theory Graph in DSA #dsa #graph #datastructure What is Graphs in DSA and why do we need it. We talked about it with the help of real world example and it will help everyone to get command over graphs. Day 1/60 of challenge. 00:00 Introduction 1:25 Introduction to Graph 30:27 Types of Graph - Undirected and Directed Graph 37:23 Cyclic Graph and Acyclic Graph 39:58 Connected and Disconnected Graph 42:28 Complete Graph 44:58 Weighted and Unwieghted Graph 45:50 Outro Video will come on Mon-Fri at 6am in the"
YouTube Link 2024-05-15T00:30Z 235K followers, 143.3K engagements
"JavaScript Functions Explained In-Depth Javascript Full Course #09 Ready to unlock the most powerful and fundamental building block in all of JavaScript In this complete in-depth guide we will master JavaScript Functions from the ground up moving from the absolute basics to the advanced concepts that professional developers use every day. We start from "first principles" explaining what a function is and why we need them with the DRY (Don't Repeat Yourself) principle. You'll learn the core anatomy of a function: parameters arguments and the return keyword. We'll demystify the different ways"
YouTube Link 2025-10-07T12:30Z 235K followers, 23.9K engagements
"Build Your Own Notification Engine System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Third week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we will walk through building a complete Notification System from scratch using Low-Level Design (LLD) principles. - What youll learn: - End-to-end architecture of a scalable"
YouTube Link 2025-05-29T12:31Z 235K followers, 23.3K engagements
"React Memo useMemo and useCallback Hook in React ReactJS Full Course #7 React Performance Optimization: Master React.memo useMemo & useCallback Hooks Complete Tutorial 🔥 Learn React optimization hooks from first principles This comprehensive guide covers React.memo useMemo and useCallback with real-world examples. 📚 What You'll Learn: ✅ React.memo - Prevent unnecessary child component re-renders ✅ useMemo - Cache expensive calculations and object references ✅ useCallback - Keep function references stable across renders ✅ When to use (and NOT use) these optimization hooks ✅ Common mistakes"
YouTube Link 2025-12-20T10:30Z 235K followers, [----] engagements
"CRUD Operation in DOM The Document Object Model (DOM) Explained Javascript Full Course #14 Ready to make your web pages interactive In this complete in--depth guide we will master the JavaScript DOM (Document Object Model). This is the crucial bridge that allows your JavaScript code to see change and react to your HTML content. If you want to become a frontend developer this is a topic you absolutely must know. We'll start from "first principles" explaining what the DOM is and why it's essential for all modern web development. You'll learn all the different ways to select any element on your"
YouTube Link 2025-10-15T12:31Z 235K followers, 19.3K engagements
"React + Vite Complete Setup and Deployment npm Plugins node Bundlers ReactJS Full Course #3 Learn React with Vite from scratch This comprehensive tutorial covers everything you need to know about setting up a modern React development environment using Vite. 🔥 What You'll Learn: Complete React + Vite setup (both automated and manual) npm vs npx - Understanding the difference and when to use each How bundlers work and why you need them What Vite plugins do and why they're necessary esbuild vs Babel - Who converts your JSX and why Import/Export system in JavaScript Package.json deep dive"
YouTube Link 2025-11-24T12:30Z 235K followers, 15.2K engagements
"Build Payment Gateway System System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army fifth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this lecture well design and implement a Payment Gateway System from scratch using Low-Level Design principles in C++ & Java. Youll see how to combine multiple design patternsStrategy Template"
YouTube Link 2025-06-11T12:30Z 235K followers, 21.4K engagements
"Javascript Full Course Introduction to JAVASCRIPT Javascript Full Course #01 Ever wondered why we can't just use a powerful language like C++ to build websites If you already know HTML and CSS why was it necessary to invent a whole new language called JavaScript In this deep dive we travel back to the dawn of the interactive web (around 1995) to uncover the critical reasonssecurity hardware limitations and accessibilitythat made C++ a non-starter for the browser and paved the way for JavaScript's domination. We'll look at real code examples that show just how dangerous C++ could have been on"
YouTube Link 2025-09-23T12:30Z 235K followers, 102.8K engagements
"JavaScript Conditionals Loops & Operators Explained Javascript Full Course #04 Ready to make your JavaScript code smart In this in-depth one-hour lecture we move from static variables to dynamic decision-making code. We'll master the fundamental building blocks of program logic: conditionals (if/else) loops (for) and the operators that power them all. But we don't just stop at the basics. We'll also uncover one of the most famous "gotchas" in all of programming: why [---] + [---] does NOT equal [---] in JavaScript (and most other languages). Understanding this floating-point precision issue is a"
YouTube Link 2025-09-29T12:30Z 235K followers, 29.7K engagements
"What is CSS (Cascading Style Sheet) Inline + Internal + External CSS CSS Full Course #01 Ready to transform your plain HTML pages into beautifully designed websites Welcome to your first step into the world of CSS This one-hour beginner-friendly crash course is the perfect introduction to Cascading Style Sheets the language that brings color layout and life to the web. We'll start from the absolute beginning explaining what CSS is and why it's a critical skill for any web developer. You'll learn the three essential ways to add CSS to your projectsInline Internal and Externaland understand the"
YouTube Link 2025-09-09T12:30Z 235K followers, 62.9K engagements
"Async Await in Javascript Javascript Full Course #20 Are you using await outside of async functions You might be blocking your ENTIRE application without knowing it In this video I explain why top-level await can be a performance disaster and show you the RIGHT way to handle asynchronous code in JavaScript. TIMESTAMPS: The Problem - Code That Looks Right But Isn't What is Top-Level Await Live Demo - How It Blocks Everything Why This Destroys Performance 🔥 KEY TAKEAWAYS: ✅ Top-level await blocks your ENTIRE module ✅ Other code has to wait for your fetch to complete ✅ Your app becomes slower"
YouTube Link 2025-11-10T12:30Z 235K followers, 13.4K engagements
"Events in Javascript Even and Event handler in Javascript Javascript Full Course #15 Ready to master the core of web interactivity In this in-depth lecture we will demystify JavaScript Events going far beyond a simple click handler. You'll learn the fundamental concepts of Event Bubbling Event Capturing and the powerful Event Delegation pattern that professional developers use to write efficient scalable code. First we'll break down the three core components of any event: the target the event type and the event handler. We'll cover the modern and correct way to listen for user actions using"
YouTube Link 2025-10-16T12:30Z 235K followers, 17.8K engagements
"Cascade & Positioning in CSS Static Relative Absolute Fixed Sticky CSS Full Course #03 Ever wonder how CSS decides which style wins when you have conflicting rules Or how developers create beautiful overlapping layouts and "sticky" navigation bars Welcome to Part [--] of our CSS Full Course where we unlock the "magic" behind CSS In this deep-dive tutorial we'll master two of the most powerful and often misunderstood concepts in CSS: the Cascade and the position property. First you'll learn the unbreakable three-step rulebookSpecificity Importance and Source Orderthat browsers use to resolve"
YouTube Link 2025-09-11T15:32Z 235K followers, 37.8K engagements
"BFS Traversal in Graph DFS Traversal in Graph Introduction to graph Graph Theory Graph in DSA #dsa #graph #datastructure What is Graphs in DSA and why do we need it. We talked about it with the help of real world example and it will help everyone to get command over graphs. Day 3/60 of challenge. 1: BFS:https://www.geeksforgeeks.org/problems/bfs-traversal-of-graph/1page=1&difficulty%5B%5D=0&category%5B%5D=Graph&sortBy=submissions 2: DFS: https://www.geeksforgeeks.org/problems/depth-first-traversal-for-a-graph/1page=1&difficulty%5B%5D=0&category%5B%5D=Graph&sortBy=submissions Video will come"
YouTube Link 2024-05-17T01:40Z 235K followers, 85.9K engagements
"JavaScript Memory Management Explained: Stack vs Heap (First Principle) Javascript Full Course #03 Ever wonder what actually happens when you declare a variable in JavaScript Where does that data go Why are some operations fast and others slow The answer lies in the two "brains" of the JavaScript engine: the Stack and the Heap. In this in-depth lecture we'll demystify JavaScript memory management using first principles. Forget complex jargonwe'll use simple powerful analogies (like a chef's kitchen) to give you a crystal-clear mental model of how your code runs. Understanding the Stack and"
YouTube Link 2025-09-26T15:28Z 235K followers, 42K engagements
"Lecture 49: Memory Management Static vs Dynamic Memory Allocation Pointers in C++ Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Day 67/180 #180daysofcode #180 hard We have made a whole video in c++ How to solve pattern print problem. We explained everything with the help of code. We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech revolution in our"
YouTube Link 2023-11-30T00:30Z 235K followers, 30.8K engagements
"10 JavaScript Projects for Beginners Learn JS by Building Real Apps Javascript Full Course #16 🚀 Master JavaScript by building [--] real-world beginner projects from scratch Perfect for anyone learning web development and JavaScript fundamentals. 📌 [--] JavaScript Projects You'll Build: [--]. ✨ Random Quote Generator - Display inspirational quotes [--]. 🎨 Background Color Changer - Interactive color switcher [--]. 💕 Love Calculator - Fun relationship compatibility checker [--]. 💰 Income Tax Calculator - Calculate taxes instantly [--]. Digital Clock - Real-time clock display [--]. Countdown Timer - Event"
YouTube Link 2025-10-21T12:42Z 235K followers, 34.4K engagements
"Mastering CSS Grid for 2D Layouts GRID in CSS CSS Full course #05 Ready to build complex two-dimensional webpage layouts with an unbelievably simple and powerful tool Welcome to Part [--] of our CSS Full Course In this comprehensive one-hour tutorial we will master CSS Grid. If you've ever struggled to create a layout with a header footer sidebar and main content this is the video that will change everything. We'll move beyond the one-dimensional limits of Flexbox and unlock the power of true 2D layout. You'll learn how to define your own grid with custom columns and rows and how to place any"
YouTube Link 2025-09-15T12:30Z 235K followers, 32.4K engagements
"What is UML Diagrams Class & Sequence Diagrams with Real Examples Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Today is Day [--] for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this lecture we break down one of the most powerful concepts in Object-Oriented Programming Inheritance and Polymorphism with clear real-world analogies and practical code"
YouTube Link 2025-05-15T12:31Z 235K followers, 152.7K engagements
"Lecture 50: Dynamic Memory Allocation of 2D and 3D Arrays in C++ Pointers in C++ Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Day 71/180 #180daysofcode #180 hard We have made a whole video in c++ How to solve pattern print problem. We explained everything with the help of code. We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech revolution in our"
YouTube Link 2023-12-04T00:30Z 235K followers, 28.3K engagements
"JavaScript DOM Manipulation The Document Object Model (DOM) Explained Javascript Full Course #13 Ready to make your web pages interactive In this complete in-depth guide we will master the JavaScript DOM (Document Object Model). This is the crucial bridge that allows your JavaScript code to see change and react to your HTML content. We'll start from "first principles" explaining what the DOM is and why it's essential for all modern web development. You'll learn all the different ways to select any element on your page from the classic getElementById to the powerful and modern querySelector."
YouTube Link 2025-10-14T12:31Z 235K followers, 20.7K engagements
"Facade Design Pattern Real-world use case + Code Design patterns in LLD Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army fourth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we dive deep into the Adapter Design Pattern by solving a realworld problem: consuming a thirdparty data provider that returns XML and exposing it in our"
YouTube Link 2025-06-03T12:30Z 233K followers, 18.7K engagements
"Template Method Pattern Step-by-Step Example (UML + Code) Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army fourth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we dive deep into the Template Method Design Pattern one of the key behavioral patterns in software engineering. Youll learn how to define a skeleton of an algorithm in a"
YouTube Link 2025-06-06T12:30Z 235K followers, [----] engagements
"HTML Nested Lists & Tables: The Complete Guide with [--] Detailed Examples HTML Full Course #02 Struggling with how to structure complex data in HTML This is the only guide you'll need to finally master nested lists and tables. We go beyond the basics and dive deep into practical real-world examples.' in this comprehensive 56-minute tutorial we demystify two of the most essential HTML elements for organizing content: nested lists and tables. Forget short confusing videos We will patiently walk through [--] distinct examples for nested lists and another [--] for tables showing you how to build them"
YouTube Link 2025-09-03T12:30Z 235K followers, 59.3K engagements
"useEffect Hook in React Hook in JS ReactJS Full Course #5 Is the useEffect hook a constant source of confusion Do you find yourself creating infinite loops or struggling with when and why your effects are running You've come to the right place. In this deep-dive tutorial we are going to deconstruct the useEffect hook from absolute first principles. We're moving beyond the syntax to build a powerful mental model of what an "effect" truly is and why React needs a special hook to manage it. We'll start by breaking our code on purpose to see why side effects can't live in the component body and"
YouTube Link 2025-12-06T12:30Z 235K followers, 13.1K engagements
"Binary Search Tree: Fixing Two nodes of a BST Sorted Link List to BST Merge two BST Trees Binary Search Tree Data Structure and Algorithm 180daysofcode #dsa #datastructures 1: Sorted Link List to BST : https://www.geeksforgeeks.org/problems/sorted-list-to-bst/1page=1&difficulty%5B%5D=2&category%5B%5D=Binary%2520Search%2520Tree&sortBy=submissions 2: Merge two BST: https://www.geeksforgeeks.org/problems/merge-two-bst-s/1page=1&difficulty%5B%5D=2&category%5B%5D=Binary%2520Search%2520Tree&sortBy=submissions 3: Fixing Two nodes of a BST :"
YouTube Link 2024-03-14T00:30Z 235K followers, 20.8K engagements
"What is HTML Heading Paragraph Anchor tag Image element HTML Full Course #01 Ready to build your very first webpage from scratch You're in the right place This is the ultimate beginner's guide to HTML designed to take you from zero to creating a structured webpage in just one video. We'll cover the absolute essentials that every future web developer needs to know. No fluff just the core concepts you'll use every single day. By the end of this tutorial you'll not only understand what HTML is but you'll have also built a simple webpage yourself 👇 What You'll Learn in This Video 👇 ✨ What is"
YouTube Link 2025-09-02T12:30Z 235K followers, 82.6K engagements
"JavaScript Numbers & Math Object Explained Random Number Generation Javascript Full Course #05 Numbers are at the heart of every application but do you really understand how they work in JavaScript In this in-depth lecture we'll master the Number and Math objects moving from basic properties to advanced secure practices. First we'll explore the JavaScript Number type in detail. We'll cover essential methods like .toFixed() and .toString() and explain the critical difference between a primitive number and a new Number() object (and why you should almost never use the latter). Then we dive into"
YouTube Link 2025-09-30T12:30Z 235K followers, 26.3K engagements
"The Magic of CSS Transitions & Transforms CSS Full course #08 Ready to add that "wow" factor to your websites This is the tutorial where your designs stop being static and start feeling alive and interactive Welcome to Part [--] of our complete CSS course. In this deep-dive lecture we will master two of the most important properties in modern CSS: transform and transition. First you'll learn how to use the transform property to move scale and rotate any element on your page without breaking your layout. We'll cover translateX translateY scale and rotate to give you complete control over your"
YouTube Link 2025-09-18T15:29Z 235K followers, 22.8K engagements
"Kth smallest element in an array Kth Largest element in an array Heap Priority Queue Heap Tree Priority Queue Data Structure and Algorithm 180daysofcode #dsa #heap #india 1: Kth smallest element: https://www.geeksforgeeks.org/problems/kth-smallest-element5635/1itm_source=geeksforgeeks&itm_medium=article&itm_campaign=bottom_sticky_on_article 2: Kth Largest Element in an Array: https://leetcode.com/problems/kth-largest-element-in-an-array/description/ 3: Kth largest element in a stream:"
YouTube Link 2024-04-01T00:31Z 234K followers, 33.3K engagements
"How to master Web development and system Design in [----] HUGE NEW YEAR OFFER - Web Development Course Launch Doston were kicking off [----] with an exclusive discount just for you 🎉 Limited Time Offers: 🔥 Web Development Course - Just [----] (Early Bird Price) Link: https://rohittnegi.akamai.net.in/new-courses/15 📚 Web Development + System Design Bundle - Only [----] Link: https://rohittnegi.akamai.net.in/new-courses/16 Coder army app: https://play.google.com/store/apps/detailsid=com.rohit.negi Coder army website: coderarmy.in Whats Inside: Learn Web Development the Coder Army way - using"
YouTube Link 2026-01-01T12:13Z 235K followers, 17.9K engagements
"Strategy Design Pattern Explained with Real-World Example Design Patterns in LLD Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Second week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. Feeling confused about Strategy Design Pattern Youre not alone. In this video we break it down step-by-step with a real-world example that makes everything"
YouTube Link 2025-05-21T12:30Z 235K followers, 49.9K engagements
"Largest Binary Search Tree Maximum Sum BST in Binary Tree Leetcode Trees Binary Search Tree Data Structure and Algorithm 180daysofcode #dsa #datastructures #leetcode 1: Largest BST: https://www.geeksforgeeks.org/problems/largest-bst/1page=1&difficulty%5B%5D=1&category%5B%5D=Binary%2520Search%2520Tree&sortBy=submissions 2: Maximum Sum BST in Binary Tree: https://leetcode.com/problems/maximum-sum-bst-in-binary-tree/description/ 00:00 Introduction 00:53 Problem [--] - Largest BST 7:27 Optimized Approach of Problem [--] - Largest BST(Order(n)) 49:49 Code Part - Largest BST 1:04:12 Code Part - Method 2"
YouTube Link 2024-03-15T00:30Z 235K followers, 18.1K engagements
"Neural Network for Beginners From Zero to Understanding Deep Learning Learn Neural Networks from scratch in this beginner-friendly tutorial. We start with the fundamental question - when do we actually need neural networks Then build up every concept step by step using first principles thinking. What you'll learn: - Why neural networks exist (when we can't define rules manually) - Perceptron - the simplest building block of deep learning - Weights Bias and what they actually do - How neural networks learn - the weight update formula - Learning rate and why it matters - Gradient descent -"
YouTube Link 2026-01-26T04:30Z 235K followers, 14.5K engagements
"Hashing in Data Structure Zero To Advance Level Hash Functions Hash Collisions Separate Chaining Linear Probing Quadratic Probing Double Hashing Cryptography Load Factor and Rehashing How maps work in C++ 00:00 Introduction 00:47 Understanding Hashing 5:35 Understanding Concept using a Question 12:32 Solving Problems in Hash Function Hash Collision 16:04 Method [--] - Separate Chaining for collision 21:58 Method [--] - Linear Probing 27:41 Method [--] - Quadratic Probing 35:21 Method [--] - Double Hashing 43:00 How Separate chaing used in Unordered map 52:50 Why Hashing Function is Important 55:42"
YouTube Link 2024-08-22T11:06Z 235K followers, 112.2K engagements
"Amazons Kiro An Agentic IDE for Smarter Development Amazon has launched Kiro AI a powerful AI-driven Integrated Development Environment (IDE) designed to assist developers throughout the entire software development process. In this video Ill walk you through everything you need to know about Kiro from its core features to how it can impact the way we write and manage code. If youre a developer a student learning to code or someone interested in how AI is changing the software industry this video is for you"
YouTube Link 2025-07-19T05:30Z 233K followers, 13.2K engagements
"Lecture 89: Introduction To STACK Implement Stack Using Arrays and LinkedList Stack Stack in C++ DSA 180daysofCode LinkedList in C++ 0:00 Bread representation with Stack 2:35 Visual Representation of Stack 5:15 Definition of Stack 7:00 Operations on Stack 10:10 LIFO method 15:50 Real World Example of Stack 17:48 Operations on Stack using Array 19:42 PUSH Operations on Stack using Array 24:00 POP Operation on Stack using Array 25:46 TOP SIZE AND EMPTY Operations 28:19 Implementation of Stack using Array 36:24 Code part of Stack using Array 54:28 Stack using LinkedLists 1:01:10 Implementation"
YouTube Link 2024-02-05T00:30Z 232K followers, 141K engagements
"Introduction To Trees Binary Tree in Data Structure Trees Data Structure and Algorithm 180daysofcode 00:00 Introduction 1:00 Definition of Trees Data Structure 1:17 Understanding Trees with Example 8:22 More Example of Trees Data Structure 13:03 What is Binary Tree 14:11 Understanding Terminologies of Trees 25:28 How to create Binary Tree Data Structure 40:35 How to code Binary Tree Data Structure 51:07 Code Part - Implementing Binary Tree Data Structure 59:23 Outro/Last Note Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp"
YouTube Link 2024-02-21T00:30Z 233K followers, 186.6K engagements
"State Design Pattern Build Vending Machine (UML & Code) System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Seventh week for #lowleveldesign #systemdesign #8weeksLLdchallenge We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this deep-dive Low-Level Design (LLD) tutorial we explore the State Design Pattern using a classic vending machine example. Youll learn how to: [--]. Define the Context &"
YouTube Link 2025-06-24T12:30Z 233K followers, [----] engagements
"Graph Representation in Data Structure Adjacency Matrix and Adjacency List Introduction to graph Graph Theory Graph in DSA #dsa #graph #datastructure What is Graphs in DSA and why do we need it. We talked about it with the help of real world example and it will help everyone to get command over graphs. Day 2/60 of challenge. 00:00 Introduction 00:21 Understanding Graph Representation 00:48 Types of Data Structure for Graph Representation - Understanding Adjecency Matrix 1:14 Understanding Undirected - Unweighted Graph 9:41 Understanding Undirected - Weigted Graph 12:38 Understanding Directed"
YouTube Link 2024-05-16T00:30Z 235K followers, 87.9K engagements
"JavaScript Objects Explained In-Depth Javascript Full Course #08 Ready to master the most fundamental building block in all of JavaScript In this complete in-depth guide we will explore everything you need to know about JavaScript Objects from the absolute basics of creating them to the advanced modern techniques used by professional developers. We start from "first principles" explaining what an object is and how to perform basic CRUD (Create Read Update Delete) operations. We'll demystify the powerful this keyword and show you the best ways to loop over an object's properties using modern"
YouTube Link 2025-10-06T12:31Z 235K followers, 28.8K engagements
"UseContext Hook State Lifting Props Drilling ReactJS Full Course #10 🔥 In this video you'll learn React Context API from scratch using first principles thinking What You'll Learn: ✅ What is State Lifting and why it's needed ✅ The Prop Drilling problem with real examples ✅ How Context API solves prop drilling ✅ Creating and using Context (React [--] new syntax) ✅ useContext hook explained with mental models ✅ Complete e-commerce cart example ✅ Best practices and performance optimization Topics Covered: - State Lifting between sibling components - Prop Drilling and its problems -"
YouTube Link 2026-01-31T10:22Z 235K followers, [----] engagements
"Java + Spring Boot Complete Course FREE in [----] Java Full Course FREE Java & Spring Boot Course Coming to YouTube The most requested topic is finally here - and it's completely FREE for the Coder Army community. In [----] while everyone's debating the next JavaScript framework enterprise applications worth billions still run on Java and Spring Boot. From fintech to e-commerce to cloud platforms - this is the stack powering real-world production systems. Why this course exists: Most Java tutorials teach you to memorize Spring Boot annotations without understanding WHY they exist."
YouTube Link 2026-02-08T08:08Z 235K followers, 31.1K engagements
"Composite Design Pattern Build File System (UML & Code) System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army fourth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this step-by-step tutorial youll learn how to implement the Composite Design Pattern by constructing a simple file system example. Well begin with a UML class diagram to"
YouTube Link 2025-06-05T12:31Z 231K followers, 10.8K engagements
"AVL Tree Deletion (Theory + Dry Run + Code Implementation) Trees AVL Tree Data Structure and Algorithm 180daysofcode #dsa #datastructures #leetcode 1: Deletion in AVL Tree: https://www.geeksforgeeks.org/problems/avl-tree-deletion/1itm_source=geeksforgeeks&itm_medium=article&itm_campaign=bottom_sticky_on_article 00:00 Introduction 00:53 Performing AVL Tree Deletion 17:12 Balance AVL Tree by Rotation 36:09 Code Part - AVL Tree Deletion 52:05 Calculating Time Complexity 52:37 Last Note Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our"
YouTube Link 2024-03-19T00:30Z 235K followers, 28.4K engagements
"Lecture 07: Solve Any Pattern Problem with Simple Trick Part-2 Pattern Print Problem in c++. How to solve Pattern Print problem as a beginner. Pattern Problem Pattern print problem with real life example Day 9/180 180daysofcode [---] hard We have made a whole video in c++ How to solve pattern print problem. We explained everything with the help of code. We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech revolution in our country and in upcoming future we want to create a tech which will"
YouTube Link 2023-09-26T00:47Z 30.8K followers, 12.8K engagements
"Lecture 27: What is STL Vector in C++ What is STL in C++ and all detail around with implementation part. HomeWork Sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Day 37/180 #180daysofcode #180 hard We have made a whole video in c++ How to solve pattern print problem. We explained everything with the help of code. We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech"
YouTube Link 2023-10-24T00:30Z 173K followers, 72.5K engagements
"Greedy Algorithm From Basic To Advance Recursion BackTracking #dsa #graph #datastructure What is Graphs in DSA and why do we need it. We talked about it with the help of real world example and it will help everyone to get command over graphs. Day 26/60 of challenge. 1: Minimum number of Coins: https://www.geeksforgeeks.org/problems/-minimum-number-of-coins4426/1itm_source=geeksforgeeks&itm_medium=article&itm_campaign=bottom_sticky_on_article 2: Shop in Candy Store:"
YouTube Link 2024-07-23T15:31Z 190K followers, 57.4K engagements
"Still figuring out what to do in life Coding DSA WEB DEVELOPMENT"
YouTube Link 2025-03-22T05:35Z 172K followers, [----] engagements
"Lecture 06: Solve Any Pattern Problem With Simple Trick Part-1 Pattern Print Problem in c++. nHow to solve Pattern Print problem as a beginner.nPattern ProblemnnDay 8/180 180daysofcode [---] hardnnWe have made a whole video in c++ How to solve pattern print problem. We explained everything with the help of code.nnWe are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech revolution in our country and in upcoming future we want to create a tech which will create many jobs in India.nnVideo will"
YouTube Link 2023-09-25T00:34Z 30.8K followers, 20.6K engagements
"Build Snake and Ladder Game UML + Code System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Seventh week for #lowleveldesign #systemdesign #8weeksLLdchallenge We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this LLD session we're designing the classic Snake and Ladder game using real-world System Design principles. You'll learn how to build a flexible and extensible game engine using"
YouTube Link 2025-06-26T12:30Z 187K followers, [----] engagements
"Introduction To Web Development Internet Working Web Development Full Course We have launched our Free Web Development Course on Youtube for Free on Coder Army Channel. We will integrate System Design and AI also in the course show that you will become industry ready. Course start date: [--] september Timing: 6pm (Mon-fri) Hackathon will be organised after course completion Join Premium Whatsapp Group: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Class Notes : https://www.notion.so/Web-Development-Course-25b3a78e0e2280919c1ed15f0878fa15source=copy_link Twitter:"
YouTube Link 2025-09-01T12:30Z 208K followers, 72.1K engagements
"Hard Problem on Linked List: Flattening a Linked List Merge K Sorted Linked List LinkedList DSA 180daysofCode LinkedList in C++ 1: Flattening a Linked List: https://www.geeksforgeeks.org/problems/flattening-a-linked-list/1utm_source=geeksforgeeks&utm_medium=article_practice_tab&utm_campaign=article_practice_tab 2: Merge K sorted linked lists: https://www.geeksforgeeks.org/problems/merge-k-sorted-linked-lists/1utm_source=geeksforgeeks&utm_medium=article_practice_tab&utm_campaign=article_practice_tab Home work sheet:"
YouTube Link 2024-01-29T13:57Z 60.4K followers, [----] engagements
"Start C++ from Zero and Write Your First Program Hi I hope this video will help you to clear your doubt regarding C++ Basics. Basically we have covered from very beginner level so that any student who is just new to Computer science can understand all the topic. Today is 3/180 day challenge. 180daysofcode We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech revolution in our country and in upcoming future we want to create a tech which will create many jobs in India. CoderArmy Website"
YouTube Link 2023-09-20T00:37Z 34K followers, 21.3K engagements
"How To Solve Recursion Problem from [--] different Method Recursion in c++ What is Recursion Recursion Basic Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Day 73/180 #180daysofcode #180 hard We have made a whole video in c++ How to solve pattern print problem. We explained everything with the help of code. We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a"
YouTube Link 2023-12-06T00:30Z 34K followers, [----] engagements
"Iterator Design Pattern UML + Code System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Sixth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video well implement the Iterator Pattern from scratch in C++ / Java to decouple traversal logic from data structuresmaking your code cleaner more extensible and true to Low-Level Design"
YouTube Link 2025-06-20T12:30Z 186K followers, [---] engagements
"Mediator Design Pattern Build Chat Room UML + Code System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Seventh week for #lowleveldesign #systemdesign #8weeksLLdchallenge We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this LLD session were diving into the Mediator Design Pattern one of the most powerful behavioral patterns for reducing tight coupling between classes. Well begin by"
YouTube Link 2025-06-27T12:30Z 187K followers, [---] engagements
"Bellman-Ford Algorithm Distance from the Source Graph Data Structure Graph Theory Graph in DSA #dsa #graph #datastructure What is Graphs in DSA and why do we need it. We talked about it with the help of real world example and it will help everyone to get command over graphs. Day 14/60 of challenge. 1: Distance from the Source: https://www.geeksforgeeks.org/problems/distance-from-the-source-bellman-ford-algorithm/1 00:00 Introduction 00:33 Discussing Bellman Ford Algorithm 46:14 Implementing Bellman Ford Algorithm 1:04:17 Trying using Bellman Ford Algorithm on Undirected Graph 1:08:58 Last"
YouTube Link 2024-06-11T00:30Z 142K followers, [----] engagements
"Lecture 23: Binary Search Different Problem Search Insert Position Sqrt(x) Count occurrence Binary Search What is Binary Search Binary search in C++. 1: Find First and Last Position of Element in Sorted Array : https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/description/ 2: Search Insert Position: https://leetcode.com/problems/search-insert-position/description/ 3: Sqrt(x): https://leetcode.com/problems/sqrtx/description/ 4: Kth Missing Positive Number: https://leetcode.com/problems/kth-missing-positive-number/description/ 5: Count the Zeros:"
YouTube Link 2023-10-18T17:02Z 60.4K followers, [----] engagements
"Lecture 91: Stack Problem: Next Greater Element Next Smaller Element Stock Span Problem Stack 180daysofCode Solve Many Problem on Stack 1: Next Greater Element: https://www.geeksforgeeks.org/problems/next-greater-element/1utm_source=geeksforgeeks&utm_medium=ml_article_practice_tab&utm_campaign=article_practice_tab 2: Next Smaller Element: https://www.codingninjas.com/studio/problems/next-smaller-element_1112581leftPanelTabValue=PROBLEM 3: Smallest Number on Left:"
YouTube Link 2024-02-07T00:30Z 182K followers, 39.8K engagements
"Launching Live WEB Development and WEB3 Course NEXUS We have Launched a Live course on Web Development (MERN Stack) and Blockchain where we are going to cover each and everything from basic to Advance level. There is no prerequisite of the course. Buy Course link: https://rohittnegi.akamai.net.in/new-courses/4-web-development-block-chain Play store app of Coder Army: https://play.google.com/store/apps/detailsid=com.rohit.negi Coupon Code: CODER ARMY Buy Course at [--] Thousand ( [--] hours) Coder Army Website: https://www.coderarmy.in/ No Prerequisite Required Course Start Date: [--] sep [----] Class"
YouTube Link 2024-08-25T05:30Z 160K followers, 14.8K engagements
"Launching LIVE High Level Design Cohort 🚀 We are launching live High level Design Cohort. We are going to cover everything from basic to advance. If you want to become a top engineer you should definitely know about System Design. Course price: [----] (Only for [--] Days) Class timing: Mon and Thu (9-11pm) Instructor: Aditya Tandon TA support and certification is available. Enroll in HLD cohort now👇 Course link: https://rohittnegi.akamai.net.in/new-courses/8-high-level-design-course Coder army App link: https://play.google.com/store/apps/detailsid=com.rohit.negi You can buy NEXUS also at 5500"
YouTube Link 2025-06-29T05:13Z 188K followers, [----] engagements
"Build Tic Tac Toe Game UML + Code System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Seventh week for #lowleveldesign(https://www.youtube.com/hashtag/lowleveldesign) #systemdesign(https://www.youtube.com/hashtag/systemdesign) #8weeksLLdchallenge(https://www.youtube.com/hashtag/8weekslldchallenge). We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we'll dive deep into Low-Level"
YouTube Link 2025-06-25T12:30Z 187K followers, [----] engagements
"Get Ready for Biggest Launch (DEFENSE) AB aayega maja"
YouTube Link 2025-08-14T11:26Z 196K followers, [----] engagements
"Singleton Design Pattern Thread-Safe Lazy & Eager Initialization + Real Use Cases Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Second week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. Master the Singleton Design Pattern* one of the most commonly asked concepts in system design interviews and source of confusion for many developers In this video"
YouTube Link 2025-05-23T12:30Z 183K followers, [----] engagements
"Whatsapp working"
YouTube Link 2025-04-18T14:08Z 174K followers, [----] engagements
"Visitor Design Pattern UML + Code System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Eighth week for #systemdesign #8weeksLLdchallenge We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we break down the Visitor Design Pattern with a practical File System example showing you how to add new operations like **size calculation compression and virus scanning without changing the file"
YouTube Link 2025-07-04T12:30Z 189K followers, [---] engagements
"How Bloom Filters Work (And Why Google & Instagram Love Them) Ever wondered how Instagram instantly tells you a username is taken Or how databases handle massive searches so quickly The answer lies in a clever data structure called a Bloom Filter. In this video Ill break down Bloom Filters step by step: What Bloom Filters are How they use hash functions and bit arrays Why they allow false positives but never false negatives Real-world applications in search engines networking and big tech By the end youll understand not just how Bloom Filters work but also why theyre so powerful in"
YouTube Link 2025-08-24T05:30Z 198K followers, [----] engagements
"Build Zepto 10-Mins Quick Commerce Inventory Management System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Sixth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In todays video well architect and code a scalable Zepto clone for inventory management using C++/Java and proven design patterns. Youll learn how to: - Model Products"
YouTube Link 2025-06-16T12:43Z 186K followers, [----] engagements
"Builder Design Pattern Classic Builder Step Builder UML + Code System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Sixth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video well explore three flavors of the Builder Pattern in C++: [--]. Classic Builder a nested builder for HttpRequest BuilderPattern [--]. *Builder with"
YouTube Link 2025-06-19T12:30Z 186K followers, [----] engagements
"Merge sort. #dsa #coding"
YouTube Link 2025-04-05T02:32Z 173K followers, [----] engagements
"Build Tinder Dating Site System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Sixth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we architect and implement a scalable dating-app system from the ground upcomplete with profiles matching logic chat rooms and notifications. Youll see how to apply key design patterns to keep"
YouTube Link 2025-06-17T12:30Z 194K followers, [----] engagements
"Observer Design Pattern Explained Real-Life Use Case + Code Example Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Third week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. Hey Something just changed."* Thats the magic of the Observer Design Pattern when one object changes others are instantly notified. In this video well cover: - What is the"
YouTube Link 2025-05-27T12:30Z 183K followers, [----] engagements
"Prototype Design Pattern UML + Code System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Eighth week for #lowleveldesign #systemdesign #8weeksLLdchallenge We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In today's video we're diving deep into the Prototype Design Patternone of the smartest ways to efficiently create similar objects without the cost of creating from scratch every time. Understand"
YouTube Link 2025-06-30T12:30Z 188K followers, [---] engagements
"Bridge Pattern Real-world use case + Code System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army fifth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. In todays System Design LLD session well explore the *Bridge Design Pattern a structural pattern that decouples an abstraction from its implementation so they can evolve independently. Using a *Car Engine example in C++: [--]. UML Diagram Walkthrough See how the Car abstraction hierarchy (Sedan SUV) is bridged to the Engine implementor hierarchy (Petrol Diesel Electric). [--]. *Code"
YouTube Link 2025-06-13T12:30Z 186K followers, [----] engagements
"Chain of Responsibility Pattern Build Cash Dispenser(UML & Code) System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army fifth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we explore theChain of Responsibilitypattern: a behavioral design pattern that lets you pass a request along a series of handlers until one of them"
YouTube Link 2025-06-10T12:30Z 185K followers, [----] engagements
"Quick sort chamka kya❤"
YouTube Link 2025-04-07T14:54Z 173K followers, [----] engagements
"Binary Search Hard Interview Problem Aggressive Cow KOKO Eating Banana Binary Search What is Binary Search Binary search in C++. 1: Aggressive cow: https://practice.geeksforgeeks.org/problems/aggressive-cows/0 2: Koko Eating Bananas: https://leetcode.com/problems/koko-eating-bananas/ 3: Magnetic Force Between Two Balls: https://leetcode.com/problems/magnetic-force-between-two-balls/description/ Day 36/180 #180daysofcode #180 hard We have made a whole video in c++ How to solve pattern print problem. We explained everything with the help of code. We are doing [---] days challenge and going to"
YouTube Link 2023-10-23T02:05Z 30.8K followers, [----] engagements
"Morris Traversal : Inorder Traversal Flatten Binary Tree to LinkedList Post Order PreOrder Trees Binary Tree Data Structure and Algorithm 180daysofcode 1: Inorder: https://www.geeksforgeeks.org/problems/inorder-traversal-iterative/1utm_source=geeksforgeeks&utm_medium=ml_article_practice_tab&utm_campaign=article_practice_tab 2: preOrder: https://www.geeksforgeeks.org/problems/preorder-traversal-iterative/1utm_source=geeksforgeeks&utm_medium=ml_article_practice_tab&utm_campaign=article_practice_tab 3: PostOrder:"
YouTube Link 2024-03-04T00:30Z [--] followers, [----] engagements
"Closure in Javascript Scope and High order function in javascript Javascript Full Course #11 Ready to unlock the concepts that separate beginner JavaScript developers from the pros In this in-depth lecture we will demystify three of the most powerful and foundational features of the language: Scope Closures and Higher-Order Functions. First we'll build a rock-solid mental model of Scope. You'll learn the "one-way glass" rule of Global Function and Block scope and understand how the JavaScript engine knows where to find your variables. This is the key that unlocks everything else. Next we'll"
YouTube Link 2025-10-09T12:30Z 235K followers, 18.4K engagements
"Map Filter Reduce Set & Map in Javascript Javascript Full Course #12 Are you ready to stop writing clumsy for loops and start writing clean powerful and modern JavaScript This in-depth lecture is your ultimate guide to the most essential methods and data structures in the language: Map Filter Reduce Set and Map. First we will master the "big three" of functional programming: .map() .filter() and .reduce(). You'll learn how to use these higher-order functions to transform select and aggregate data with concise readable one-line commands. We'll use a real-world products dataset to demonstrate"
YouTube Link 2025-10-10T12:30Z 235K followers, 19.3K engagements
"Tower of Hanoi Code part and Dry Run Tower of Hanoi: https://practice.geeksforgeeks.org/problems/tower-of-hanoi-1587115621/1utm_source=geeksforgeeks&utm_medium=article_practice_tab&utm_campaign=article_practice_tab Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Day 93/180 #180daysofcode #180 hard We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech"
YouTube Link 2023-12-26T00:30Z 34K followers, [----] engagements
"Hackathon price heloo"
YouTube Link 2025-06-21T17:29Z 187K followers, [----] engagements
"Bubble sort. #dsa #coding #coder"
YouTube Link 2025-03-27T06:47Z 172K followers, [----] engagements
"Graphs: Covid Spread Find the number of Islands Replace O's with X's Graph Data Structure Graph Theory Graph in DSA #dsa #graph #datastructure What is Graphs in DSA and why do we need it. We talked about it with the help of real world example and it will help everyone to get command over graphs. Day 8/60 of challenge. 1: Covid Spread : https://www.geeksforgeeks.org/problems/covid-spread--141631/1 2: Find the number of Islands : https://www.geeksforgeeks.org/problems/find-the-number-of-islands/1 3; Replace O's with X's:"
YouTube Link 2024-05-27T01:44Z 135K followers, [----] engagements
"Heap Interview Problem: Merge K Sorted Linked List Merge K Sorted Arrays Heap Tree Priority Queue Data Structure and Algorithm 180daysofcode #dsa #heap Prerequisite: https://youtu.be/2DQJvLq-rm8si=OSi8ysu6_GOiwo3C 1: Merge K Sorted Linked List: https://www.geeksforgeeks.org/problems/merge-k-sorted-linked-lists/1itm_source=geeksforgeeks&itm_medium=article&itm_campaign=bottom_sticky_on_article 2: Merge k Sorted Arrays: https://www.geeksforgeeks.org/problems/merge-k-sorted-arrays/1 Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our"
YouTube Link 2024-04-04T00:30Z 115K followers, [----] engagements
"LinkedList Problems: Remove Duplicates Merge [--] Sorted LinkedList Sort a LinkedList of [--] [--] and [--] 1: Remove duplicate element from sorted Linked List: https://www.geeksforgeeks.org/problems/remove-duplicate-element-from-sorted-linked-list/1 2: Merge two sorted linked lists: https://www.geeksforgeeks.org/problems/merge-two-sorted-linked-lists/1utm_source=geeksforgeeks&utm_medium=article_practice_tab&utm_campaign=article_practice_tab 3: Given a linked list of 0s 1s and 2s sort it: https://www.geeksforgeeks.org/problems/given-a-linked-list-of-0s-1s-and-2s-sort-it/1 Home work sheet:"
YouTube Link 2024-01-23T00:30Z 38K followers, [----] engagements
"First Hackathon for System Design Our First hackathon is launched. You will get problem statement from Coder Army app Once you completed the challenge submit your code in Coder Army app. There is a Course Folder with name System Design. Coder Army app: https://play.google.com/store/apps/detailsid=com.rohit.negi Website:https://rohittnegi.akamai.net.in/new-courses Join Coder Army Whatsapp Group: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Code and Notes: Github : https://github.com/adityatandon15/LLD Connect with Aditya Tandon Instagram : https://www.instagram.com/adityatandon2"
YouTube Link 2025-06-01T10:44Z 185K followers, [----] engagements
"Web Development FREE Course Orientation We are launching Free Web Development Course on Youtube for Free on Coder Army Channel. We will integrate System Design and AI also in the course show that you will become industry ready. Course start date: [--] september Timing: 6pm (Mon-fri) Hackathon will be organised after course completion Join Premium Whatsapp Group: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Course Detail: https://www.notion.so/Web-Development-Course-25b3a78e0e2280919c1ed15f0878fa15source=copy_link Twitter: https://x.com/rohit_negi9s=21 Channel: @CoderArmy9"
YouTube Link 2025-08-31T16:41Z 203K followers, 25.9K engagements
"Array doesnt exist in Javascript"
YouTube Link 2025-04-10T14:19Z 174K followers, [----] engagements
"Build Splitwise Clone Expense Splitting App System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Seventh week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. Ever wondered how apps like Splitwise handle splitting expenses tracking balances and simplifying debts between friends or groups In this video well break down a *complete Low Level"
YouTube Link 2025-06-23T12:30Z 187K followers, [----] engagements
"Command Design Pattern Real-world use case + Code Design patterns in LLD Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Third week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video well explore the Command Design Pattern through a practical Smart Home Automation example. Youll learn how to: [--]. Encapsulate device actions (turn"
YouTube Link 2025-05-30T12:30Z 184K followers, [----] engagements
"Factory Design Pattern Simple Factory Method & Abstract Factory with Real-Life Examples Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Second week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. Confused between Simple Factory Factory Method and Abstract Factory This video clears it all from concepts to code. In this comprehensive tutorial we cover"
YouTube Link 2025-05-22T12:30Z 183K followers, [----] engagements
"Build Chess Game UML + Code System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Eighth week for #lowleveldesign #systemdesign #8weeksLLdchallenge We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. LLD Deep Dive: Building a Chess Game from Scratch In this video we break down the complete Low-Level Design of a Chess game piece by piece. From how to represent the board and pieces to move validation"
YouTube Link 2025-07-03T12:30Z 188K followers, [----] engagements
"Lecture 76: Exception Handling in C++ Exception Handling Error in C++ Runtime Error in C++ Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Day 108/180 #180daysofcode #180 hard We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech revolution in our country and in upcoming future we want to create a tech which will create many jobs in India. Video will come"
YouTube Link 2024-01-11T12:24Z 195K followers, 91.7K engagements
"GenAI talk with GuruJI Hello"
YouTube Link 2025-05-24T18:05Z 183K followers, [----] engagements
"JavaScript Arrays Explained In-Depth Javascript Full Course #07 Ready to master the most powerful and versatile data structure in JavaScript In this complete in-depth guide we will explore everything you need to know about JavaScript Arrays from the absolute basics to the advanced modern techniques used by professional developers. We start from "first principles" explaining what an array is and how to create and access its elements. We then cover essential methods for modifying arrays like .push() .pop() and the powerful .splice(). You'll learn the best ways to loop over arrays including the"
YouTube Link 2025-10-03T12:30Z 235K followers, 26.2K engagements
"Lecture 18: Time and Space Complexity From Zero To Advance Time and Space Complexity in c++. Big O notation Theta Notation Omega Notation [--] Example on Time and Space complexity Day 24/180 #180daysofcode #180 hard We have made a whole video in c++ How to solve pattern print problem. We explained everything with the help of code. We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech revolution in our country and in upcoming future we want to create a tech which will create many jobs in"
YouTube Link 2023-10-11T00:31Z 160K followers, 108.9K engagements
"Lecture 60: Quick Sort Algorithm Quick Sort in C++ Time Complexity of Quick Sort Space Complexity of Quick Sort 1: Sort an Array: https://leetcode.com/problems/sort-an-array/description/ Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Day 85/180 #180daysofcode #180 hard We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech revolution in our country and in"
YouTube Link 2023-12-18T00:30Z 161K followers, 22.5K engagements
"Wrapping up with System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Eighth week for #lowleveldesign #systemdesign #8weeksLLdchallenge We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we wrap up our System Design. We will talk about anti-patterns Null Object pattern and end our series of System Design. Join Coder Army Whatsapp Group:"
YouTube Link 2025-07-06T07:33Z 189K followers, [----] engagements
"How JavaScript Code Runs Hoisting in Javascript Javascript Full Course #10 Ever wonder what actually happens when you run a line of JavaScript Go beyond just writing code and truly understand the "magic" behind the scenes. In this detailed step-by-step guide we'll break down the entire JavaScript execution model from first principles. This is the foundational knowledge that separates beginner developers from senior engineers. By the end of this video you will finally have that "aha" moment with concepts like the Call Stack Hoisting the Memory Heap and the Execution Context. WHAT YOU WILL"
YouTube Link 2025-10-08T12:31Z 235K followers, 17.5K engagements
"Lecture 70: Object Oriented Programming in C++ Introduction to OOPs What is Class What is Object What is Padding What is Static and Dynamic Memory Allocation Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Day 99/180 #180daysofcode #180 hard We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech revolution in our country and in upcoming future we want to"
YouTube Link 2024-01-02T01:13Z 198K followers, 331.8K engagements
"Build Discount Coupon Engine System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army fifth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this deep-dive LLD tutorial well design and implement a full-featured Discount Coupon Engine in C++/Java then translate the same concepts into Java. Youll see how to: [--]. *Define flexible discount"
YouTube Link 2025-06-12T12:30Z 185K followers, [----] engagements
"The Illusion of Thinking: What Apples New AI Research Reveals Artificial Intelligence looks smart but does it really think In this video we dive into Apples latest research paper that highlights the illusion of thinking in AI models. Discover why AIs answers may feel intelligent yet lack true reasoning and what this means for the future of AI innovation and humanmachine interaction. - Breaking down Apples strange findings - Why AI creates the illusion of thought - What this means for developers researchers & everyday users Stay till the end to get a clear understanding of why AI isnt as"
YouTube Link 2025-08-28T06:24Z 213K followers, 24.3K engagements
"System Design"
YouTube Link 2025-04-21T11:32Z 175K followers, [----] engagements
"Lecture 75: Polymorphism and Virtual Function in C++ Polymorphism Compile Time Polymorphism Runtime Polymorphism Function Overloading Operator Overloading Virtual Function Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Day 107/180 #180daysofcode #180 hard We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech revolution in our country and in upcoming"
YouTube Link 2024-01-10T02:14Z 188K followers, 96.5K engagements
"Memento Design Pattern UML + Code System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Eighth week for #lowleveldesign #systemdesign #8weeksLLdchallenge We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video well break down the Memento Design Pattern with a practical real-world example a simple in-memory database that supports transactions backups and rollbacks just like real systems do."
YouTube Link 2025-07-05T12:31Z 189K followers, [---] engagements
"Heap [--] Interview Problem Height of Heap Minimum Cost of ropes Magician and Chocolates Trees Heap Tree Data Structure and Algorithm 180daysofcode #dsa #datastructures #heap 1: Height of Heap : https://www.geeksforgeeks.org/problems/height-of-heap5025/1page=1&difficulty%5B%5D=-1&category%5B%5D=Heap&sortBy=submissions 2:Minimum Cost of ropes : https://www.geeksforgeeks.org/problems/minimum-cost-of-ropes-1587115620/1page=1&difficulty=0&category=Heap&sortBy=submissions 3:Magician and Chocolates: https://www.interviewbit.com/problems/magician-and-chocolates/ 4: Last Stone Weight:"
YouTube Link 2024-03-28T14:59Z 161K followers, 10.1K engagements
"Lecture 73: Inheritance Access Modifier Real Life Example Inheritance in C++ Access Modifier Public Private Protected Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Day 102/180 #180daysofcode #180 hard We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech revolution in our country and in upcoming future we want to create a tech which will create many jobs"
YouTube Link 2024-01-05T00:36Z 161K followers, 31.2K engagements
"Lecture 71: Constructor and Destructor in C++ Introduction to OOPs Constructor in C++ Destructor in C++ Default Constructor Parameterized Constructor Copy Constructor Inline Constructor Constructor Overloading Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel: https://whatsapp.com/channel/0029Va6H0tbHVvTbcuT99Y1f Day 100/180 #180daysofcode #180 hard We are doing [---] days challenge and going to complete the whole course within the duration with quality content on Youtube. I am on the mission to create a tech"
YouTube Link 2024-01-03T02:03Z 173K followers, 140.5K engagements
"STL in C++ Pair in C++ Set in C++ List in C++ Map in C++ #dsa #datastructures #leetcode 00:00 Introduction to Standard Template Library 2:21 Understanding Pair in C++ 7:59 Code Part - Pair in C++ 17:18 Understanding List in C++ 22:41 Code Part - List in C++ 34:57 Set in C++ 51:25 Code Part - Set in C++ 1:13:20 Unordered Set in C++ 1:19:07 Code Part - Unordered Set in C++ 1:22:57 Understanding Map in C++ 1:34:11 Code Part - Map in C++ 1:51:00 Last Note Home work sheet: https://drive.google.com/drive/folders/1N9UUtFHRe5a8h1vq3iEVEyvXM5sZDRHvusp=sharing Join Our Whatsapp Channel:"
YouTube Link 2024-03-25T01:49Z 176K followers, 39.1K engagements
"HIGH LEVEL SYSTEM DESIGN LETS GOO"
YouTube Link 2025-06-29T17:06Z 188K followers, [----] engagements
"Flyweight Design Pattern UML + Code System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Sixth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video well implement the Iterator Pattern from scratch in C++ / Java to decouple traversal logic from data structuresmaking your code cleaner more extensible and true to Low-Level"
YouTube Link 2025-06-21T12:31Z 186K followers, [---] engagements
"Lecture 24: Search in a Rotated Array Peak index in a Mountain Array Kth Missing Positive Number Binary Search What is Binary Search Binary search in C++. 1: Peak Index in a Mountain Array: https://leetcode.com/problems/peak-index-in-a-mountain-array/description/ 2: Find Minimum in Rotated Sorted Array: https://leetcode.com/problems/find-minimum-in-rotated-sorted-array/ 3: Search in Rotated Sorted Array: https://leetcode.com/problems/search-in-rotated-sorted-array/description/ 4: Kth Missing Positive Number: https://leetcode.com/problems/kth-missing-positive-number/description/ Day 32/180"
YouTube Link 2023-10-19T00:35Z 30.6K followers, [----] engagements
"Binary search"
YouTube Link 2025-04-12T15:34Z 174K followers, [----] engagements
"Binary Tree: PreOrder Traversal Iterative PostOrder Traversal Iterative InOrder Traversal Trees Binary Tree Data Structure and Algorithm 180daysofcode 1: PreOrder Traversal Iterative: https://www.geeksforgeeks.org/problems/preorder-traversal-iterative/1 2: PostOrder Traversal Iterative: https://www.geeksforgeeks.org/problems/postorder-traversal-iterative/1page=3&difficulty%5B%5D=1&category%5B%5D=Tree&sortBy=submissions 3: InOrder Traversal: https://www.geeksforgeeks.org/problems/inorder-traversal-iterative/1page=3&difficulty%5B%5D=1&category%5B%5D=Tree&sortBy=submissions 00:00 Introduction"
YouTube Link 2024-02-28T00:30Z 161K followers, 14.9K engagements
"Time to Level UP Your Development Journey We have Launched a Live course on Web Development (MERN Stack) and Blockchain where we are going to cover each and everything from basic to Advance level. There is no prerequisite of the course. Buy Course link: https://rohittnegi.akamai.net.in/new-courses/4-web-development-block-chain Play store app of Coder Army: https://play.google.com/store/apps/detailsid=com.rohit.negi Special Diwali Offer: Get it at 4000rs only Coupon Code: CODER500 Coder Army Website: https://www.coderarmy.in/ No Prerequisite Required Course Start Date: [--] sep [----] Class"
YouTube Link 2024-10-31T11:05Z 211K followers, 19.1K engagements
"Build Zomato Food Delivery App System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Third week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. Ever wondered how apps like Zomato or Swiggy work behind the scenes In this video we walk you through a Low-Level Design (LLD) project where we built a complete online food delivery system"
YouTube Link 2025-05-26T12:30Z 227K followers, 41.1K engagements
"Minimum Spanning Tree Prims Algorithm Graph Data Structure Graph Theory Graph in DSA #dsa #graph #datastructure What is Graphs in DSA and why do we need it. We talked about it with the help of real world example and it will help everyone to get command over graphs. Day 19/60 of challenge. 1: Prims algorithm: https://www.geeksforgeeks.org/problems/minimum-spanning-tree/1itm_source=geeksforgeeks&itm_medium=article&itm_campaign=bottom_sticky_on_article 00:00 Introduction 00:46 Understanding Minimum Spanning Tree 5:51 Real World use cases of MST. 9:15 Prims Algorithm (Solving Minimum Spanning"
YouTube Link 2024-06-27T00:30Z 228K followers, 27.5K engagements
"JavaScript this Keyword Explained Call apply bind Javascript Full Course #22 Stop being confused by the this keyword in JavaScript In this complete guide we'll demystify this from first principles helping you build a rock-solid intuitive understanding of how it really works. We'll explore every context: method calls simple functions arrow functions strict mode vs. non-strict mode and how this behaves in both browser and Node.js environments. Next we'll master the essential tools for controlling this: the call() apply() and bind() methods. You'll learn not just what they do but why they are"
YouTube Link 2025-11-13T13:30Z 235K followers, 12.3K engagements
"JavaScript Strings & Dates Explained In-Depth Javascript Full Course #06 Ready to master two of the most essentialand most misunderstoodparts of JavaScript In this comprehensive in-depth lecture we will demystify Strings and the famously quirky Date object. First we'll explore every aspect of JavaScript Strings. You'll learn the difference between string literals and string objects why strings are immutable and how to use essential methods like .slice() .split() and .replace(). We'll also cover modern features like Template Literals that will make your code cleaner and more powerful. Next we"
YouTube Link 2025-10-01T13:30Z 235K followers, 22.7K engagements
"Prototypes and class in Javascript Javascript Full Course #21 Are you tired of being confused by JavaScript's prototype system Do you use the class keyword but have a nagging feeling you don't really know how it works This video is the ultimate guide to finally understanding JavaScript's object model. We're going back to first principles. Forget memorizing rules. We'll start with a single JavaScript object and the problem of code repetition and logically build our way up to the modern class syntax uncovering the "why" at every step. By the end you won't just know how to use prototypes and"
YouTube Link 2025-11-12T12:30Z 235K followers, [----] engagements
"Callback Hell in JavaScript Async Programming Tutorial Javascript Full Course #18 🔥 What is Callback Hell in JavaScript Complete Tutorial for Beginners Learn everything about Callback Hell (also known as Pyramid of Doom) in JavaScript with real-world examples. This tutorial explains callback hell from first principles - perfect for beginners learning asynchronous programming TIMESTAMPS Introduction to Callback Hell JavaScript Single-Threaded Nature What are Callbacks Real-World Example: Food Delivery System 📌 WHAT YOU'LL LEARN ✅ What is Callback Hell and why it exists ✅ How JavaScript"
YouTube Link 2025-10-23T12:30Z 235K followers, 13.7K engagements
"Build Spotify Music Player App System Design Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army fourth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we dive deep into the Adapter Design Pattern by solving a realworld problem: consuming a thirdparty data provider that returns XML and exposing it in our application as JSON. Youll"
YouTube Link 2025-06-04T13:16Z 222K followers, 14.6K engagements
"The Ultimate DSA Revision Guide DSA 180daysofCode Data. Structure and Algorithm How to Become Baap Coder Revision Strategy for Code How to revise DSA"
YouTube Link 2024-02-24T12:34Z 215K followers, 23.9K engagements
"Adapter Design Pattern Real-world use case + Code Design patterns in LLD Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army fourth week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this video we dive deep into the Adapter Design Pattern by solving a realworld problem: consuming a thirdparty data provider that returns XML and exposing it in our"
YouTube Link 2025-06-02T12:30Z 230K followers, 13.4K engagements
"useRef Hook in React JS ReactJS Full Course #8 🚀 Master React useRef Hook - Complete Tutorial in Hindi In this video we'll learn the useRef hook from first principles No pattern memorization - pure understanding of WHY and HOW useRef works. 📚 What You'll Learn: ✅ What is useRef and why does it exist ✅ The fundamental problem useRef solves ✅ Two main use cases of useRef ✅ Storing mutable values (interval IDs timers counters) ✅ Accessing real DOM elements directly ✅ useRef vs useState - when to use what ✅ Building practical examples from scratch 🔥 Projects We Build: [--] Stopwatch with Start"
YouTube Link 2025-12-28T10:46Z 235K followers, [----] engagements
"Flexbox in CSS One Project CSS Full course #04 Ready to finally stop fighting with CSS layouts In this comprehensive one-hour masterclass we will unlock the power of Flexbox the modern CSS layout system that will change the way you build websites forever. This is Part [--] of our CSS Full Course and it's where you'll gain the superpower to create clean responsive and perfectly aligned layouts with just a few lines of code. We'll start by exploring the painful "old world" of floats and hacks so you can truly appreciate the elegant solutions Flexbox provides. You'll learn the core concept of the"
YouTube Link 2025-09-12T15:38Z 235K followers, 37.8K engagements
"Inheritance & Polymorphism in OOPs Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Today is Day [--] for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. In this lecture we break down one of the most powerful concepts in Object-Oriented Programming Inheritance and Polymorphism with clear real-world analogies and practical code demonstrations. *What youll"
YouTube Link 2025-05-14T12:30Z 223K followers, 86.1K engagements
"React Hook Form Zod Validation ReactJS Full Course #9 Form handling in React doesnt have to be messy or painful. In this complete 1-hour tutorial we deep dive into React Hook Form and Zod to build fast scalable and type-safe forms in React applications. This video is perfect if youre tired of uncontrolled inputs heavy re-renders or confusing validation logic. We start from the basics and gradually move to real-world form validation patterns used in production-level React apps. 🔍 What youll learn in this video ✅ Why React Hook Form is better than traditional form handling ✅ Understanding"
YouTube Link 2026-01-17T13:31Z 235K followers, [----] engagements
"Deploy Your First Project Media Tag Multi Page Website HTML Full Course #05 Ready to bring your webpages to life and launch your very first website In this powerful 35-minute tutorial we'll move beyond static pages and dive into the exciting world of multimedia multi-page websites and real-world deployment First we'll master the HTML media tags learning how to natively embed video and audio players directly into your projects. Then we'll solve a critical challenge for any beginner: how to correctly structure and link multiple HTML pages to build a complete cohesive website. Finally we'll take"
YouTube Link 2025-09-08T12:30Z 235K followers, 52.9K engagements
"Why we are not Creating Productive Engineer You can enroll in Strike: https://strikes.in/"
YouTube Link 2025-11-28T16:37Z 235K followers, 10.2K engagements
"Bridge in a Graph Critical Connections in a Network Graph Data Structure Graph Theory Graph in DSA #dsa #graph #datastructure What is Graphs in DSA and why do we need it. We talked about it with the help of real world example and it will help everyone to get command over graphs. Day 21/60 of challenge. 1: Critical Connections in a Network: https://leetcode.com/problems/critical-connections-in-a-network/description/ Video will come on Mon-Fri at 6am in the morning DSA Course for free C++ Free Course Rohit Negi DSA Course C++ Coder Army DSA Course c++ Function in C++ Pointers in C++. Strings"
YouTube Link 2024-07-04T01:04Z 229K followers, 17K engagements
"How React works under the Hood React reconciliation fibre diffing key ReactJS Full Course #6 How React Works Under the Hood React Reconciliation Fiber Diffing & Keys Explained Ever wondered how React updates your UI so fast What's happening behind the scenes when you click a button or change state In this video I break down React's internal architecture from first principles - no hand-waving no buzzwords just pure engineering concepts. What You'll Learn: 🔹 Virtual DOM & React Elements - What they actually are (not what tutorials claim) 🔹 Reconciliation Algorithm - How React"
YouTube Link 2025-12-16T13:25Z 235K followers, 13K engagements
"Binary Tree Problems: Construct Tree from Inorder & Preorder Tree from Postorder and Inorder Trees Binary Tree Data Structure and Algorithm 180daysofcode 1: Construct Tree from Inorder & Preorder: https://www.geeksforgeeks.org/problems/construct-tree-1/1 2: Tree from Postorder and Inorder: https://www.geeksforgeeks.org/problems/tree-from-postorder-and-inorder/1 3: Check Tree Traversal: https://www.geeksforgeeks.org/problems/check-tree-traversal--141628/1 00:00 Introduction 00:30 Problem [--] - Construct a Tree from In Order and Pre Order 1:00 Trying to Build a Tree using only Pre Order 2:38"
YouTube Link 2024-02-29T00:30Z 222K followers, 39.2K engagements
"Decorator Pattern Explained Real-world use case + Code Design patterns in LLD Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Third week for #lowleveldesign #systemdesign #8weeksLLdchallenge. We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. Tired of rewriting classes every time you need a small change Welcome to the world of Decorator Pattern where adding new functionality is as easy as giving Mario a"
YouTube Link 2025-05-28T12:30Z 230K followers, 19.4K engagements
"Animation in CSS from zero CSS Full course #07 Ready to move beyond static webpages and add some life and motion to your designs Welcome to Part [--] of our CSS Full Course In this fun and beginner-friendly tutorial we will unlock the magic of CSS Animations with @keyframes. This lecture is designed for absolute beginners. We'll start with the simple definition of what an animation is and build our knowledge from the ground up using a simple "flipbook" analogy. You'll learn the essential two-part system of creating animations: first defining the "storyboard" with @keyframes and second applying"
YouTube Link 2025-09-17T12:30Z 235K followers, 21.8K engagements
"Launching Data Structure and Algorithm and GenAi course Launching STRIKE If you are intersted in DSA and GenAI you can enroll in STRIKE Buy Course: https://strikes.in/course/combo Download app: https://play.google.com/store/apps/detailsid=com.rohit.negi Class timimg: 9pm DSA start date: mon-tue-thu(Live Class) GenAI Course: wed-fri Exclusive feature limited to first [---] people only. Happy Diwali Everyone"
YouTube Link 2025-10-19T04:30Z 235K followers, 10.9K engagements
"File Path in HTML HTML BoilerPlate Code DIV + Class + ID HTML Full Course #03 Ready to move beyond single tags and start building real structured web pages This is the tutorial you've been waiting for In this video we unlock the secrets of professional HTML structure teaching you the foundational concepts that separate beginners from job-ready developers. We'll cover how files on a website actually link together and how to write the essential "boilerplate" code that every single HTML page needs. By the end you'll understand how to use divs and semantic tags like header footer and main to"
YouTube Link 2025-09-04T12:30Z 227K followers, 44.6K engagements
"Lecture 95: Implement two stacks in an array N Stack in an Array Stack 180daysofCode Solve Many Problem on Stack 1: Implement two stacks in an array: https://www.geeksforgeeks.org/problems/implement-two-stacks-in-an-array/1utm_source=geeksforgeeks&utm_medium=ml_article_practice_tab&utm_campaign=article_practice_tab 2: N Stack in an array: https://www.codingninjas.com/studio/problems/n-stacks-in-an-array_1164271leftPanelTabValue=PROBLEM 00:00 Intro 00:48 Problem [--] - Implement two Stack in an Array(Approach 1) 03:27 Approach [--] - Implement two Stack in an Array 14:22 Code Part - Implement two"
YouTube Link 2024-02-13T00:30Z 224K followers, 22.8K engagements
"Queue Hard: Sliding Window Maximum Minimum Number of K Consecutive Bit Flips Queue 180daysofCode Solve Many Problem on Queue DSA 1: Sliding Window Maximum: https://leetcode.com/problems/sliding-window-maximum/description/ 2: Minimum Number of K Consecutive Bit Flips: https://leetcode.com/problems/minimum-number-of-k-consecutive-bit-flips/description/ HomeWork: 1: Gas Station: https://leetcode.com/problems/gas-station/description/ 2: Count Subarrays With Fixed Bounds: https://leetcode.com/problems/count-subarrays-with-fixed-bounds/description/ 00:00 Introduction 00:44 Problem [--] - Sliding"
YouTube Link 2024-02-20T00:30Z 219K followers, 22K engagements
"Event Loop in Javascript Why JS is Single threaded and synchronous Javascript Full Course #17 Ever wondered why JavaScript is called a single-threaded language even though it handles asynchronous tasks like setTimeout() API calls and event listeners so efficiently In this 45-minute deep-dive well decode the core mechanism behind JavaScripts concurrency model exploring the Call Stack Web APIs Callback Queue and the Event Loop in a way that youll never forget. 💡 What Youll Learn in This Video: Why JavaScript is single-threaded and synchronous The truth behind JavaScripts non-blocking behavior"
YouTube Link 2025-10-22T12:31Z 235K followers, 13.4K engagements
"Prototype and Classes in Javascript Javascript Full Course #21 Are you using await outside of async functions You might be blocking your ENTIRE application without knowing it In this video I explain why top-level await can be a performance disaster and show you the RIGHT way to handle asynchronous code in JavaScript. TIMESTAMPS: The Problem - Code That Looks Right But Isn't What is Top-Level Await Live Demo - How It Blocks Everything Why This Destroys Performance 🔥 KEY TAKEAWAYS: ✅ Top-level await blocks your ENTIRE module ✅ Other code has to wait for your fetch to complete ✅ Your app"
YouTube Link 2025-11-11T12:31Z 218K followers, [----] engagements
"Proxy Design Pattern Virtual Proxy Protection Proxy Remote Proxy Welcome to Lecture [--] of the Ultimate Low-Level Design (LLD) Series by Coder Army Fifth week for** #lowleveldesign(https://www.youtube.com/hashtag/lowleveldesign) #systemdesign(https://www.youtube.com/hashtag/systemdesign) #8weeksLLdchallenge(https://www.youtube.com/hashtag/8weekslldchallenge). We are doing [--] weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Lets learn LLD like never before and attain advance level mastery on this subject. Welcome back to our System"
YouTube Link 2025-06-09T12:31Z 217K followers, [----] engagements
"STRIKE is Coming Hello COder army"
YouTube Link 2025-10-17T16:56Z 235K followers, 13.6K engagements
"How Whatsapp is end to end Encrypted"
YouTube Link 2025-04-15T15:18Z 228K followers, 20.5K engagements
"Java + Spring Boot Complete Course FREE in [----] Java Full Course FREE Java & Spring Boot Course Coming to YouTube The most requested topic is finally here - and it's completely FREE for the Coder Army community. In [----] while everyone's debating the next JavaScript framework enterprise applications worth billions still run on Java and Spring Boot. From fintech to e-commerce to cloud platforms - this is the stack powering real-world production systems. Why this course exists: Most Java tutorials teach you to memorize Spring Boot annotations without understanding WHY they exist."
YouTube Link 2026-02-08T08:08Z 235K followers, 31.1K engagements
"UseContext Hook State Lifting Props Drilling ReactJS Full Course #10 🔥 In this video you'll learn React Context API from scratch using first principles thinking What You'll Learn: ✅ What is State Lifting and why it's needed ✅ The Prop Drilling problem with real examples ✅ How Context API solves prop drilling ✅ Creating and using Context (React [--] new syntax) ✅ useContext hook explained with mental models ✅ Complete e-commerce cart example ✅ Best practices and performance optimization Topics Covered: - State Lifting between sibling components - Prop Drilling and its problems -"
YouTube Link 2026-01-31T10:22Z 235K followers, [----] engagements
"Neural Network for Beginners From Zero to Understanding Deep Learning Learn Neural Networks from scratch in this beginner-friendly tutorial. We start with the fundamental question - when do we actually need neural networks Then build up every concept step by step using first principles thinking. What you'll learn: - Why neural networks exist (when we can't define rules manually) - Perceptron - the simplest building block of deep learning - Weights Bias and what they actually do - How neural networks learn - the weight update formula - Learning rate and why it matters - Gradient descent -"
YouTube Link 2026-01-26T04:30Z 235K followers, 14.5K engagements
"React Hook Form Zod Validation ReactJS Full Course #9 Form handling in React doesnt have to be messy or painful. In this complete 1-hour tutorial we deep dive into React Hook Form and Zod to build fast scalable and type-safe forms in React applications. This video is perfect if youre tired of uncontrolled inputs heavy re-renders or confusing validation logic. We start from the basics and gradually move to real-world form validation patterns used in production-level React apps. 🔍 What youll learn in this video ✅ Why React Hook Form is better than traditional form handling ✅ Understanding"
YouTube Link 2026-01-17T13:31Z 235K followers, [----] engagements
"How to master Web development and system Design in [----] HUGE NEW YEAR OFFER - Web Development Course Launch Doston were kicking off [----] with an exclusive discount just for you 🎉 Limited Time Offers: 🔥 Web Development Course - Just [----] (Early Bird Price) Link: https://rohittnegi.akamai.net.in/new-courses/15 📚 Web Development + System Design Bundle - Only [----] Link: https://rohittnegi.akamai.net.in/new-courses/16 Coder army app: https://play.google.com/store/apps/detailsid=com.rohit.negi Coder army website: coderarmy.in Whats Inside: Learn Web Development the Coder Army way - using"
YouTube Link 2026-01-01T12:13Z 235K followers, 17.9K engagements
"useRef Hook in React JS ReactJS Full Course #8 🚀 Master React useRef Hook - Complete Tutorial in Hindi In this video we'll learn the useRef hook from first principles No pattern memorization - pure understanding of WHY and HOW useRef works. 📚 What You'll Learn: ✅ What is useRef and why does it exist ✅ The fundamental problem useRef solves ✅ Two main use cases of useRef ✅ Storing mutable values (interval IDs timers counters) ✅ Accessing real DOM elements directly ✅ useRef vs useState - when to use what ✅ Building practical examples from scratch 🔥 Projects We Build: [--] Stopwatch with Start"
YouTube Link 2025-12-28T10:46Z 235K followers, [----] engagements
"React Memo useMemo and useCallback Hook in React ReactJS Full Course #7 React Performance Optimization: Master React.memo useMemo & useCallback Hooks Complete Tutorial 🔥 Learn React optimization hooks from first principles This comprehensive guide covers React.memo useMemo and useCallback with real-world examples. 📚 What You'll Learn: ✅ React.memo - Prevent unnecessary child component re-renders ✅ useMemo - Cache expensive calculations and object references ✅ useCallback - Keep function references stable across renders ✅ When to use (and NOT use) these optimization hooks ✅ Common mistakes"
YouTube Link 2025-12-20T10:30Z 235K followers, [----] engagements
"How React works under the Hood React reconciliation fibre diffing key ReactJS Full Course #6 How React Works Under the Hood React Reconciliation Fiber Diffing & Keys Explained Ever wondered how React updates your UI so fast What's happening behind the scenes when you click a button or change state In this video I break down React's internal architecture from first principles - no hand-waving no buzzwords just pure engineering concepts. What You'll Learn: 🔹 Virtual DOM & React Elements - What they actually are (not what tutorials claim) 🔹 Reconciliation Algorithm - How React"
YouTube Link 2025-12-16T13:25Z 235K followers, 13K engagements
"useEffect Hook in React Hook in JS ReactJS Full Course #5 Is the useEffect hook a constant source of confusion Do you find yourself creating infinite loops or struggling with when and why your effects are running You've come to the right place. In this deep-dive tutorial we are going to deconstruct the useEffect hook from absolute first principles. We're moving beyond the syntax to build a powerful mental model of what an "effect" truly is and why React needs a special hook to manage it. We'll start by breaking our code on purpose to see why side effects can't live in the component body and"
YouTube Link 2025-12-06T12:30Z 235K followers, 13.1K engagements
"Why we are not Creating Productive Engineer You can enroll in Strike: https://strikes.in/"
YouTube Link 2025-11-28T16:37Z 235K followers, 10.2K engagements
"React useState Hook The Complete Guide for Beginners What is hooks ReactJS Full Course #4 Learn the useState Hook in React from absolute first principles This complete tutorial explains why useState exists how it works internally and how to use it effectively in your React applications. 🎯 What You'll Learn: Why normal JavaScript variables don't work in React components What useState hook is and why it's needed How React stores state internally Understanding re-renders and component lifecycle State updates are asynchronous - what this means Multiple setState calls and the updater function"
YouTube Link 2025-11-28T12:30Z 235K followers, 12.5K engagements
"React + Vite Complete Setup and Deployment npm Plugins node Bundlers ReactJS Full Course #3 Learn React with Vite from scratch This comprehensive tutorial covers everything you need to know about setting up a modern React development environment using Vite. 🔥 What You'll Learn: Complete React + Vite setup (both automated and manual) npm vs npx - Understanding the difference and when to use each How bundlers work and why you need them What Vite plugins do and why they're necessary esbuild vs Babel - Who converts your JSX and why Import/Export system in JavaScript Package.json deep dive"
YouTube Link 2025-11-24T12:30Z 235K followers, 15.2K engagements
"React JSX Babel React Components & Props Explained from Scratch ReactJS Full Course #2 Learn React the RIGHT way - no memorization just pure understanding In this video we dive deep into React fundamentals using a first-principles approach. Instead of just showing you "how" to write code we explain "why" things work the way they do. 🔥 What You'll Learn in This Video: ✅ JSX - What It Actually Is JSX is NOT HTML - proof with real examples Why className instead of class Why style is an object not a string Self-closing tags requirement JavaScript expressions inside ✅ Babel - The Transpiler What"
YouTube Link 2025-11-21T12:30Z 235K followers, 26.7K engagements
"ReactJS Full Course What is ReactJS React JS Tutorial for Beginners ReactJS Full Course #1 Welcome to the first episode of the only React JS course you'll ever need. If you've mastered HTML CSS and JavaScript but are tired of tutorials that just show you the 'how' without the 'why' you're in the right place. We're throwing out memorization and building a deep fundamental understanding of React from First Principles. In this first video we go back to the beginning. Before we write a single line of JSX we explore the core problem React was created to solve. We'll compare the old imperative way"
YouTube Link 2025-11-19T12:30Z 235K followers, 82.8K engagements
"JavaScript this Keyword Explained Call apply bind Javascript Full Course #22 Stop being confused by the this keyword in JavaScript In this complete guide we'll demystify this from first principles helping you build a rock-solid intuitive understanding of how it really works. We'll explore every context: method calls simple functions arrow functions strict mode vs. non-strict mode and how this behaves in both browser and Node.js environments. Next we'll master the essential tools for controlling this: the call() apply() and bind() methods. You'll learn not just what they do but why they are"
YouTube Link 2025-11-13T13:30Z 235K followers, 12.3K engagements
"Prototypes and class in Javascript Javascript Full Course #21 Are you tired of being confused by JavaScript's prototype system Do you use the class keyword but have a nagging feeling you don't really know how it works This video is the ultimate guide to finally understanding JavaScript's object model. We're going back to first principles. Forget memorizing rules. We'll start with a single JavaScript object and the problem of code repetition and logically build our way up to the modern class syntax uncovering the "why" at every step. By the end you won't just know how to use prototypes and"
YouTube Link 2025-11-12T12:30Z 235K followers, [----] engagements
"Async Await in Javascript Javascript Full Course #20 Are you using await outside of async functions You might be blocking your ENTIRE application without knowing it In this video I explain why top-level await can be a performance disaster and show you the RIGHT way to handle asynchronous code in JavaScript. TIMESTAMPS: The Problem - Code That Looks Right But Isn't What is Top-Level Await Live Demo - How It Blocks Everything Why This Destroys Performance 🔥 KEY TAKEAWAYS: ✅ Top-level await blocks your ENTIRE module ✅ Other code has to wait for your fetch to complete ✅ Your app becomes slower"
YouTube Link 2025-11-10T12:30Z 235K followers, 13.4K engagements
"Promises in Javascript JSON vs JS Object Javascript Full Course #19 Learn JavaScript Promises from First Principles This complete tutorial covers everything from basic async concepts to advanced promise methods. 🎯 What You'll Learn: ✅ What are Promises and why do we need them ✅ Understanding Asynchronous JavaScript ✅ The Callback Hell problem explained ✅ Creating and consuming Promises ✅ Promise states (Pending Fulfilled Rejected) ✅ Promise chaining - write clean async code ✅ Error handling with .catch() and .finally() ✅ Promise.all() Promise.race() Promise.allSettled() Promise.any() ✅"
YouTube Link 2025-10-28T12:59Z 235K followers, 19.1K engagements
"Callback Hell in JavaScript Async Programming Tutorial Javascript Full Course #18 🔥 What is Callback Hell in JavaScript Complete Tutorial for Beginners Learn everything about Callback Hell (also known as Pyramid of Doom) in JavaScript with real-world examples. This tutorial explains callback hell from first principles - perfect for beginners learning asynchronous programming TIMESTAMPS Introduction to Callback Hell JavaScript Single-Threaded Nature What are Callbacks Real-World Example: Food Delivery System 📌 WHAT YOU'LL LEARN ✅ What is Callback Hell and why it exists ✅ How JavaScript"
YouTube Link 2025-10-23T12:30Z 235K followers, 13.7K engagements
"Event Loop in Javascript Why JS is Single threaded and synchronous Javascript Full Course #17 Ever wondered why JavaScript is called a single-threaded language even though it handles asynchronous tasks like setTimeout() API calls and event listeners so efficiently In this 45-minute deep-dive well decode the core mechanism behind JavaScripts concurrency model exploring the Call Stack Web APIs Callback Queue and the Event Loop in a way that youll never forget. 💡 What Youll Learn in This Video: Why JavaScript is single-threaded and synchronous The truth behind JavaScripts non-blocking behavior"
YouTube Link 2025-10-22T12:31Z 235K followers, 13.4K engagements
"10 JavaScript Projects for Beginners Learn JS by Building Real Apps Javascript Full Course #16 🚀 Master JavaScript by building [--] real-world beginner projects from scratch Perfect for anyone learning web development and JavaScript fundamentals. 📌 [--] JavaScript Projects You'll Build: [--]. ✨ Random Quote Generator - Display inspirational quotes [--]. 🎨 Background Color Changer - Interactive color switcher [--]. 💕 Love Calculator - Fun relationship compatibility checker [--]. 💰 Income Tax Calculator - Calculate taxes instantly [--]. Digital Clock - Real-time clock display [--]. Countdown Timer - Event"
YouTube Link 2025-10-21T12:42Z 235K followers, 34.4K engagements
"Launching Data Structure and Algorithm and GenAi course Launching STRIKE If you are intersted in DSA and GenAI you can enroll in STRIKE Buy Course: https://strikes.in/course/combo Download app: https://play.google.com/store/apps/detailsid=com.rohit.negi Class timimg: 9pm DSA start date: mon-tue-thu(Live Class) GenAI Course: wed-fri Exclusive feature limited to first [---] people only. Happy Diwali Everyone"
YouTube Link 2025-10-19T04:30Z 235K followers, 10.9K engagements
"STRIKE is Coming Hello COder army"
YouTube Link 2025-10-17T16:56Z 235K followers, 13.6K engagements
"Events in Javascript Even and Event handler in Javascript Javascript Full Course #15 Ready to master the core of web interactivity In this in-depth lecture we will demystify JavaScript Events going far beyond a simple click handler. You'll learn the fundamental concepts of Event Bubbling Event Capturing and the powerful Event Delegation pattern that professional developers use to write efficient scalable code. First we'll break down the three core components of any event: the target the event type and the event handler. We'll cover the modern and correct way to listen for user actions using"
YouTube Link 2025-10-16T12:30Z 235K followers, 17.8K engagements
"CRUD Operation in DOM The Document Object Model (DOM) Explained Javascript Full Course #14 Ready to make your web pages interactive In this complete in--depth guide we will master the JavaScript DOM (Document Object Model). This is the crucial bridge that allows your JavaScript code to see change and react to your HTML content. If you want to become a frontend developer this is a topic you absolutely must know. We'll start from "first principles" explaining what the DOM is and why it's essential for all modern web development. You'll learn all the different ways to select any element on your"
YouTube Link 2025-10-15T12:31Z 235K followers, 19.3K engagements
"JavaScript DOM Manipulation The Document Object Model (DOM) Explained Javascript Full Course #13 Ready to make your web pages interactive In this complete in-depth guide we will master the JavaScript DOM (Document Object Model). This is the crucial bridge that allows your JavaScript code to see change and react to your HTML content. We'll start from "first principles" explaining what the DOM is and why it's essential for all modern web development. You'll learn all the different ways to select any element on your page from the classic getElementById to the powerful and modern querySelector."
YouTube Link 2025-10-14T12:31Z 235K followers, 20.7K engagements
"Map Filter Reduce Set & Map in Javascript Javascript Full Course #12 Are you ready to stop writing clumsy for loops and start writing clean powerful and modern JavaScript This in-depth lecture is your ultimate guide to the most essential methods and data structures in the language: Map Filter Reduce Set and Map. First we will master the "big three" of functional programming: .map() .filter() and .reduce(). You'll learn how to use these higher-order functions to transform select and aggregate data with concise readable one-line commands. We'll use a real-world products dataset to demonstrate"
YouTube Link 2025-10-10T12:30Z 235K followers, 19.3K engagements
"Closure in Javascript Scope and High order function in javascript Javascript Full Course #11 Ready to unlock the concepts that separate beginner JavaScript developers from the pros In this in-depth lecture we will demystify three of the most powerful and foundational features of the language: Scope Closures and Higher-Order Functions. First we'll build a rock-solid mental model of Scope. You'll learn the "one-way glass" rule of Global Function and Block scope and understand how the JavaScript engine knows where to find your variables. This is the key that unlocks everything else. Next we'll"
YouTube Link 2025-10-09T12:30Z 235K followers, 18.4K engagements
"How JavaScript Code Runs Hoisting in Javascript Javascript Full Course #10 Ever wonder what actually happens when you run a line of JavaScript Go beyond just writing code and truly understand the "magic" behind the scenes. In this detailed step-by-step guide we'll break down the entire JavaScript execution model from first principles. This is the foundational knowledge that separates beginner developers from senior engineers. By the end of this video you will finally have that "aha" moment with concepts like the Call Stack Hoisting the Memory Heap and the Execution Context. WHAT YOU WILL"
YouTube Link 2025-10-08T12:31Z 235K followers, 17.5K engagements
"JavaScript Functions Explained In-Depth Javascript Full Course #09 Ready to unlock the most powerful and fundamental building block in all of JavaScript In this complete in-depth guide we will master JavaScript Functions from the ground up moving from the absolute basics to the advanced concepts that professional developers use every day. We start from "first principles" explaining what a function is and why we need them with the DRY (Don't Repeat Yourself) principle. You'll learn the core anatomy of a function: parameters arguments and the return keyword. We'll demystify the different ways"
YouTube Link 2025-10-07T12:30Z 235K followers, 23.9K engagements
"JavaScript Objects Explained In-Depth Javascript Full Course #08 Ready to master the most fundamental building block in all of JavaScript In this complete in-depth guide we will explore everything you need to know about JavaScript Objects from the absolute basics of creating them to the advanced modern techniques used by professional developers. We start from "first principles" explaining what an object is and how to perform basic CRUD (Create Read Update Delete) operations. We'll demystify the powerful this keyword and show you the best ways to loop over an object's properties using modern"
YouTube Link 2025-10-06T12:31Z 235K followers, 28.8K engagements
"JavaScript Arrays Explained In-Depth Javascript Full Course #07 Ready to master the most powerful and versatile data structure in JavaScript In this complete in-depth guide we will explore everything you need to know about JavaScript Arrays from the absolute basics to the advanced modern techniques used by professional developers. We start from "first principles" explaining what an array is and how to create and access its elements. We then cover essential methods for modifying arrays like .push() .pop() and the powerful .splice(). You'll learn the best ways to loop over arrays including the"
YouTube Link 2025-10-03T12:30Z 235K followers, 26.2K engagements
"JavaScript Strings & Dates Explained In-Depth Javascript Full Course #06 Ready to master two of the most essentialand most misunderstoodparts of JavaScript In this comprehensive in-depth lecture we will demystify Strings and the famously quirky Date object. First we'll explore every aspect of JavaScript Strings. You'll learn the difference between string literals and string objects why strings are immutable and how to use essential methods like .slice() .split() and .replace(). We'll also cover modern features like Template Literals that will make your code cleaner and more powerful. Next we"
YouTube Link 2025-10-01T13:30Z 235K followers, 22.7K engagements
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