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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: 2025-07-21 14:07:53 UTC

MongoDB – Day X
Dived into Element Operators today!
-$exists – helps check if a field even exists
-$type – lets you filter by data type
Perfect for when data isn’t always predictable!
#MongoDB #LearnInPublic #BackendJourney #100DaysOfCode


XX engagements

![Engagements Line Chart](https://lunarcrush.com/gi/w:600/p:tweet::1947297480707866780/c:line.svg)

**Related Topics**
[filter](/topic/filter)
[$exists](/topic/$exists)
[$type](/topic/$type)
[coins ai](/topic/coins-ai)

[Post Link](https://x.com/nayanchellani/status/1947297480707866780)