Javascript Interview Questions

Hey Everyone, In this video, we will understand the Internal architecture of Javascript. We'll see how Event loops and Call Stacks work in Javascript Engine.

Quick Links

Topics Covered
Javascript Engine Working
Javascript Call Stacks
Javascript Browser WebAPI's
Javascript Task Queue and Micro Task Queue
Working with Javascript Promises and Timers

Video Titles
- Javascript Interview Questions
- Javascript For Beginners
- Javascript Interview Questions For Beginners
- Javascript Interview Preparation
- Javascript Interview Questions and Answers
- Javascript Task Queue and Micro Task Queue
- Async Javascript and Event Loop

Hashtags
#javascript #javascriptinterview #javascriptinhindi #nodejs #webdevelopment #fullstackwebdevelopment

[avi]

Why this channel doesn't have a million subs? Absolutely flawless!

[rohitsure]

Just few days ago, I discovered your channel. Your teaching way creates addiction towards coding😍

[KaustavOP]

I love this series. So many concepts got cleared. Thank you so much.

[ramireddypanditi]

this is the perfect example of setTimeout and callStack. it's clear vision what's going on behind, Thank you sir !

[shivamrc]

Thank you piyush im having an interview at 19 and i didnot know the architecture of JS and didn't know much about promises and event loop & your explantion of this concepts were directly entered to my brain Thank You

[siddhantgupta]

I was always afraid of JS because of the promise, but you explained it like it was cake walk. Thanks for the video💯

[farhanakhtar]

what the explanation sir, Whole 40 mint was just for one question !! Amazing,

[haniahani]

A callback always will be registered in browser whether it is coming from promises or setTimeout.
1. When promise is resolved (when we got response) only then callback of promise will go to Microtast queue.
2. When time is expired only then callback of setTimeout/setInterval will go to callback queue.
3. Event loop is always running. Event loop will check if call stack is empty then event loop will select callbacks from Microtast queue because Microtast queue ha higher priority than callback queue.
4. If call stack and Microtask queue both are empty only then event loop will select callbacks from callback queue.
5. Both queues follow FIFO method of queue data structure.

[shototodoroki]

Piyush bhai please make a detailed course on each and everything you teach. The way you explain in depth concepts and teach new things is just outstanding. I cannot even get distracted for a second while seeing your videos. Please piyush bhai make courses on each and everything I just want to learn each and every technology from you and you only. Thank you so much for this amazing video. ❣

[Ankur-onor]

Wow, that was fantastic!❤‍🔥 Your teaching style is awesome 🔥. It's hard to put into words how impressive that was😀

[FahadKhan-txqr]

You are great. In a video of just 40 minutes you killed all the complex concepts of javaScript.

[Abhishek-fofc]

Nice video to fastly revise the things. Thanks Piyush bhai❤❤. Hope to see some interview content for react and node really soon.

[mydoll]

Hell Man! You made my concepts crytal clear. Kaha see layer ho itna damage bhai, Thora mje b de do 🤣🤣🤣🤣🤣

[sumitpal]

This is Gem video those who does not know/new to call-stack, event-loop. It was really fun watching this video on this topic after a long time. Everybody will like the way you explained this topic. Kudos!!

[FaizanAnsari-yggw]

Brother, the way you explained JavaScript concepts was insightful and accessible. Please provide more lectures on crucial JavaScript topics so that we can understand them in more depth. Thank you

[mqmfthj]

Best explanation till now on YouTub. Hindi m banane k liye dhanyavad

[aniketbhalla]

Piyush any recommendation for updated and best react testing course teaching testing with React Testing Library, Jest and Cypress? Also covering all the testing parts, unit testing, integration and end to end testing. Urgently required!!

[achyutkumarsingh]

Tnx for discussing advance concepts in this channel...
Best chanel to learn

[SILVERFANG]

❤Thanks a lot for this...ek hi video me js ka architecture achhese se samajh me aa gya

[SubhamayPaul]

One of the best event loop explaination. So many concepts got cleared. Thankyouu soo much! Please make a video explaining how promises work.