JavaScript Mock Interview | Interview Questions for Senior JavaScript Developers | Part 1

The ninth chapter of the Turing Mock Interview series takes a look at what the technical interview for a JavaScript developer would look like. Watch the video to learn more about the probable questions that might appear in a JavaScript test and Interview, brush up on the core concepts before the D-Day, and prepare well for your next JavaScript development interview. Stay tuned for the second part of the video!
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[@aslefhin]

Jose's Introduction 0:08 Lav's Introduction 0:54 Interesting projects you've worked on 1:52 Which framework/library did you use for the project? 3:52 Is Javascript single-threaded or multi-threaded? 4:00 How does Javascript handle asynchronous operations? 4:28 How does Javascript know when a Promise is fulfilled and executes the callback? 5:37 What is the event loop? 6:35 What is the difference between Promises and Observable? 8:47 What is the difference between Promise.all() and Promise.allSettled()? 10:02 What are event emitters? 11:12 Can we unsubscribe from an event? 11:59 What optimizations are you familiar with? 12:12 What is the difference between call() and apply()? 18:40 What's the difference between creating an object using const and Object.freeze()? 19:38 What's the difference between Map and WeakMap? 21:00

[@AmanVerma-ci3kg]

Thanks , This is so helpful

[@madhanravi4365]

you missed the dark bark hearing form the background till the end !!

[@martinemanuel8239]

I'm a jr developer and this interview was easy for me, I think I'm ready to land a new job ! thanks Turing!

[@lingeshvirinmoonsamy8692]

this interview is golden I learnt a lot even tho ive been in software about 8 years

[@codewithyemi]

It's a nice interview. A developer is expected to understand the language thoroughly. Looking forward to part 2

[@ruona2133]

I want to see a part 2 of this 🙌🏾❤️❤️🙌🏾🙌🏾

[@ankitaggarwal8556]

Absolutely stunning video.

[@brindashah3187]

Waiting for part 2...😍

[@jitendrapatidar3791]

great discussion, form this I learned different techniques for code optimization. 👍 thank you for this type of content.

[@Kaizala1933]

Can't wait for part II

[@lousanadachi3796]

What a great developer!

[@santhoshsiva163]

Very informative video for job seekers and developers

[@gulabchandgupta5486]

Great content very helpful thanks 🙏

[@dinub8414]

Jose you are a kind interviewer 🙂 I wish the answer about observables would have mentioned streams and operators. This is the most juicy part imo

[@ruona2133]

This is amazing. The day I’ll try Turing, I hope I’ll be interviewed by Jose. He sounds like a very talented developer 🙌🏾

[@Turingcom]

Jose is indeed awesome! :)

[@aliplaysgtr]

This guy is very good at JS! Thanks for those videos

[@surendersingh6390]

Nice learning experience, keep posted this kind of stuff

[@nishantswain7836]

cant wait for the part 2 of this interview.

[@Turingcom]

Coming soon! Please subscribe to the channel so you get notified of more such videos! 😄

[@chandanamummaneni906]

You deserve a medal for this content man

[@Turingcom]

We're glad you found this video helpful. Please subscribe & stay tuned to our page! We'll be sure to share more helpful videos 😄

[@shaheershukur]

Great 💜 please upload more front-end, JS and angular related interview videos. These videos are really informative and helpful.

[@Turingcom]

Thank you for such nice feedback, Shaheer! 🙌 We'll make note of this and be sure to include this in our future videos. Do subscribe to our page so that you get notified of more such videos 😄

[@CricketVaaHo]

Good to see you again 😎

[@jatilyadav4000]

Always the best

[@sajalgupta7345]

Interesting discussion. It would be nice to see part 2 also. For me, the most interesting question was: "DIfference between const and Object.freeze"

[@Turingcom]

Glad to hear you found this insightful, Sajal! 🙌 Please subscribe to our channel and stay tuned for more helpful videos!

[@avisharma3037]

Informative interview.. looking forward to more work of Mr.Lav

[@Turingcom]

Thank you for your feedback, Avi 😄🙌 We'll make note of this and be sure to include this in our future videos. Do subscribe to our page so that you get notified of more such videos 😄

[@wellingtonluizgaboardi220]

I would like to see part 2 also. Thank you for sharing.

[@Turingcom]

Coming soon! :)

[@AnkushKumar-ts6wo]

Thank you sir , video is very interesting for JavaScript developer but I want to one more video for HR preparation.

[@ismailajallow9555]

can't wait for part 2

[@Turingcom]

Glad you found this helpful, Ismaila! ⭐ Subscribe to our channel and stay tuned for future updates 😄

[@Vamsiri]

Informative

[@biswanathbose8211]

It is a nice informative Video. waiting for the part Second, If possible add some question pertaining callback queue, micro-stack queue and also Global execution area.

[@Turingcom]

Great suggestion! Will keep this in mind for the next video! :)

[@mohammedabulsoud1819]

Nice topic, let's see part 2 please

[@Turingcom]

Coming soon, Mohammed! 🙌 Do subscribe to our page so that you get notified of more such videos 😄

[@uzomanwanne2751]

Great interview and lessons were learnt

[@Turingcom]

You’re welcome 😊 Glad you found this helpful!

[@kotlaarunkumar4251]

This is very insightful, thanks for letting the community understand how things work! Can you also pls do videos on blockchain developer interviews as well, thanks in advance!

[@Turingcom]

Thank you for your suggestion, @kotlaarunkumar4251! We'll note this and be sure to include the topic in our future videos. Please subscribe to the channel, so you get notified of more such videos! 😄 -Turing

[@beenatiwari4365]

Answer for optimization techniques was really good..

[@Turingcom]

Glad it helped!

[@xeon789]

genius person

[@user-uv5py8zi1w]

Awesome

[@AnuragArwalkar]

I would like to see Sr React Developer Interview. Thanks for the great content

[@Turingcom]

We're glad you're enjoying our videos Anurag! :) We shall be sure to pass on your feedback to the team!

[@lesagecode]

Great interview ❤️

[@Turingcom]

Thanks! :)

[@educationfundashorts5254]

Really nice !

[@Turingcom]

We're glad you liked this video. Please subscribe & stay tuned to our page! We'll be sure to share more helpful videos 😄

[@juandavidblancovergara2279]

other performance optimizacion can be use worker_threads for isolate to heavy process in secondary threads, normalization table databases 'couse the reusing data insted of data duplacating when there are not normalization is too important, use o(1) methods index insted of o(n) if is posible, hash tables, views and stored procedurs, index data records tables, chunks process with parallel executing promises, paginations list data and of course the cache memory reusing is good idea too.

[@sufailkalathil169]

Very informative interview

[@Turingcom]

Thanks for listening! :)

[@MohanLanke]

Please do one more interview on javascript coding challenges

[@jatilyadav4000]

Great Video

[@Turingcom]

Glad you enjoyed it!:)

[@KREVIAZUKZHOU]

thanks for share

[@Turingcom]

Always welcome! :)

[@mr.shoaibmalik2488]

Thank you

[@Turingcom]

We're glad you found this video helpful, Shoaib. Please subscribe & stay tuned to our page! We'll be sure to share more helpful videos 😄

[@tech5956]

Very useful😊

[@Turingcom]

Glad to hear that! :)

[@vishnugupta6284]

nice

[@afifosama853]

🎉

[@dinub8414]

Quite a bit of confusion there btw event queue and call stack... Asynchronous execution is made possible by the queue, while a call stack is present in any excution, whether javascript or any other runtime. Anyone interested to get a full clear picture, check out Jake Archibald with his talk about the event loop.

[@tenebrae1191]

👍👍

[@yannid5456]

5:44 He was literally expecting him to explain how Event Loop Cycle works

[@prasenjit476]

Yes, he was expecting something about the microtask queue .

[@pratikbhujel]

I am an NON IT field student and 27 years old ,who is looking for Laravel jobs I am taking tranning about PHP with laravel and I have made couple of projects and work on too as a freelancer , Any tips for entry or jr. Laravel developer? Or should quit ?

[@Turingcom]

Hello @pratikbhujel Turing hires developers with at least 3+ years of full-time, relevant programming experience. For junior or non-technical roles, you could always try checking for our internal positions at careers.turing.com :) Happy to help! - Turing

[@lesagecode]

I'm preparing myself to vuejs test on turing Please M. Jose can you do an interview on vuejs??

[@Turingcom]

We shall be sure to let our team know! :)

[@chigurupati_s]

make "UI/UX Designer" Interview plz

[@user-uv5py8zi1w]

I wanna see the part two

[@Turingcom]

Thank you for your feedback, Руслан 🙌 Part 2 will be up soon! Please subscribe & stay tuned to our channel! We'll be sure to share more such videos 😄

[@albertogiuseppe8619]

i would like to see interview questions for juniors JavaScript Developers too

[@Turingcom]

Please subscribe & stay tuned to our page! We'll be sure to share more helpful videos :)

[@hakanaki]

Please please please, create more of these videos 😭😭😭

[@Turingcom]

Hey Chukwuemeka! 🙌 We're glad you found this video helpful. Please subscribe & stay tuned to our page! We'll be sure to share more helpful videos 😄

[@wahebbenzaid543]

I want to pass an interview but after watching some of interviews in turing, I get frustrated. all developers working in turing have a big experience not less than 4 years, I have only 2 years and half of experience in C# and some side projects in JS. :( :( :(

[@Turingcom]

Hello Waheb 😄 Turing hires developers with at least 3+ years of full-time relevant programming experience. For junior or non-technical roles, you could always try checking for our internal positions at careers.turing.com 🙂 Happy to help! - Turing

[@shaikshavalisyed2012]

Good 👍one for me.

[@Turingcom]

Thanks 👍

[@nightrocks]

call and apply ? thats rare

[@yashpandit2693]

upload part 2

[@Turingcom]

Coming up soon, Yash 🙌🚀 Please subscribe & stay tuned to our channel! We'll be sure to share more such videos 😄

[@amanchaudhary8494]

are turing test mcq?

[@Turingcom]

Hi Aman 😄 Turing tests are a combination of MCQ tests and coding challenges. You may also refer to the developer FAQ for further queries - help.turing.com/hc/en-us/categories/360000770615-I-m-a-developer- Regards, Turing

[@anishmahajan4377]

JavaScript interview part 2

[@Turingcom]

Thank you for your feedback, Anish! We'll make note of this and be sure to include this in our future videos. Please subscribe to the channel so you get notified of more such videos! 😄

[@arjunsingh9634]

lav speacks in 2x