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![nayanchellani Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::1860391268972470272.png) Nayan Chellani [@nayanchellani](/creator/twitter/nayanchellani) on x XX followers
Created: 2025-07-26 10:34:42 UTC

MongoDB – Day XX
Today I explored evaluation operators to make my queries even more dynamic:
🔹 $regex – Pattern matching (great for search features!)
🔹 $expr – Compare fields within a document (like salary > bonus)

#MongoDB #100DaysOfCode #LearnInPublic #WebDev


XXX engagements

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**Related Topics**
[$expr](/topic/$expr)
[$regex](/topic/$regex)

[Post Link](https://x.com/nayanchellani/status/1949055770672210170)