upGrad Interview Questions: Javascript Questions What is closure? What are promises ? Wh

Javascript Questions

What is closure?
What are promises ?
What is "this" in Javascript ?
How do we handle lifecycle hooks in functional components of React ?

CodingNinjas

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Tip 1 : Understanding how Javascript works behind the scene helps a lot.
Tip 2 : Keep a habit of reading tech blogs and article.

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Popular interview questions of SDE-2