Javascript Interview Questions ( Promises ) - Polyfills, Callbacks, Async/await, Output Based, etc

#JavascriptInterview #Javascript #FrontendInterview

Javascript Interview Questions on Async Javascript including Promises, Callback, async/await etc will be discussed in this video including its in Polyfills, Output Based Questions, promise combinators, callback hell, etc.

➡️ Book an Interview Preparation call with me -
https://topmate.io/roadsidecoder

🟦 Follow me on Twitter and u will clear your interview 🤓 -
https://twitter.com/piyush_eon

⭐ Support the channel and learn from me One on One -
https://www.youtube.com/channel/UCIPZVAwDGa-A4ZJxCBvXRuQ/join

🔗 Blog for the video -
https://roadsidecoder.hashnode.dev/javascript-interview-questions-promises-and-its-polyfills

🔗 Functions Interview Video -
https://www.youtube.com/watch?v=btwFJT_xzdg&list=PLKhlp2qtUcSaCVJEt4ogEFs6I41pNnMU5&index=3

🔗 Javascript Interview Series -
https://www.youtube.com/playlist?list=PLKhlp2qtUcSaCVJEt4ogEFs6I41pNnMU5

🔗 Cars24 Interview Experience -
https://www.youtube.com/watch?v=vxggZffOqek&list=PLKhlp2qtUcSb_WQZC3sq9Vw3NC4DbreUL&index=2

🔗 Unacademy Interview Experience -
https://www.youtube.com/watch?v=abbdJ4Yfm54

🔗 Tazorpay Interview Experience -
https://www.youtube.com/watch?v=q-ylRxSxGcY

🔗 MERN Stack Tutorial with Redux -
https://www.youtube.com/watch?v=IQXjO0t4XRM&list=PLKhlp2qtUcSYC7EffnHzD-Ws2xG-j3aYo

🔗 React Beginner's Project Tutorials -
https://www.youtube.com/playlist?list=PLKhlp2qtUcSa_rX7glmB7HyFsEOEQa0Uk

-------------------------------------------------------------------------

00:00:00 Intro
00:00:36 What is a Promise?
00:01:36 Synchronous vs Asynchronous Code
00:04:25 Asynchronous Code Examples
00:05:32 Callbacks
00:07:10 Callback Hell
00:09:56 Promises
00:13:48 Promise.resolve and Promise.reject
00:15:10 Rewriting callbacks with promises
00:18:03 Promise Chaining
00:20:08 Promise Combinators
00:20:57 Promise.all()
00:23:01 Promise.race()
00:24:01 Promise.allSettled()
00:24:43 Promise.any()
00:25:41 Async/Await
00:29:10 Get Interview Preparation call with me
00:29:43 Ques 1 - What's the Output?
00:31:38 Ques 2 - What's the Output?
00:33:19 Ques 3 - What's the Output?
00:34:36 Ques 4 - Promise Chaining Output
00:35:54 Ques 5 - Promise Chaining Output 2
00:38:05 Ques 6 - Promise Chaining Output 3
00:40:33 Ques 7 - Implement this Logic
00:42:30 Ques 8 - Rewrite using 'async/await'
00:43:59 Ques 9 - Solve Promise Recursively
00:46:49 Ques 10 - Promise Polyfill
00:59:55 Promise.resolve() and Promise.reject() Polyfill
01:00:54 Promise.all()
01:06:30 Promise.race, allSettled and any Polyfill
01:07:06 Get Interview Preparation call with me

-------------------------------------------------------------------------

Special Thanks to our members -
Srinivas Ayyagari