Top 25 JavaScript Interview Questions for Beginners

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In Hindi Top 25 JavaScript
• Top 25 JavaScript Inte...

[@swayampravodasgupta2956]

11:49 - There are a few other differences between var, let and const. 1. Var can be redeclared while let and const cannot be redeclared. 2. Both var and let can be declared without assigning a value while const needs to have a value assigned when you are declaring it. 3. Additionally during JS execution var is "hoisted" therefore all the var variables are first brought to the start of your code by JS and with an undefined value, before it executes your code. Let and const are not "hoisted" in the sense of the word but are instead stored in temporal dead zone (a memory allocated used to store such variables for the time between declaration and initialization).

[@kasireddylaxmi5609]

Yes you are correct

[@kasireddylaxmi5609]

21:37

[@govindbansal2181]

Lots of respect for your hard work and great content. 🎉

[@zia_muntasir25]

so much easy to perceive and happy to see simple explaination of the hard topics

[@interviewhappy]

Glad it helped! @self-taughtlearner6401

[@AleySoundz]

This video is amazing! Really helps to sum up what javascript involves.

[@sathidontheboina8061]

Wow it's a very good explanation and easy to understand Thank you so much sir.....for creating this type of videos it is very helpful to many of the learners once aging thanks you sir

[@cristiangolu1234]

Excellent job with these interview questions, also good luck with your KZbin channel, you're doing great content, keep it up! 🔥🔥🔥

[@interviewhappy]

Thanks so much!@cristiangolu1234

[@HarshPatel-dk8gy]

Thank you so much👍 Sir. bahut ache se samjaya Very nice video

[@lakshmisettisrinivas2187]

Hi sir, thank you so much for this class and we need one more session on javascript theory and coding. your classes are very helpful to understand the concept easily.

[@datjoe6273]

Great video. Very useful for brushing up for interviews. Thanks.

[@interviewhappy]

Glad it was helpful! @datjoe6273

[@sumanthn.s.1377]

Fantastic video bruh, never seen such a simplified explanation on JS in KZbin.

[@interviewhappy]

Glad you liked it! @sumanthn.s.1377

[@rayhanjs]

The content is truly amazing and will continue to be so.

[@interviewhappy]

Thanks and All the best for your career.

[@mayurpatil9829]

Very best interview question for preparation.. thnx a lot😊

[@shafiq.hussain.cscore]

What a great person and great explanation.. inspired

[@ushasgr2010]

Very nice video!! So neatly organized the content for relearning & Great explanations for each question. Excellent :) Thank you so much

[@silpal3073]

Simply superb. Thank you so much.

[@basukunal89]

The content is really great with a nice explanation of each concept. It helped me a lot.

[@interviewhappy]

Glad to hear that . Thanks a lot @basukunal89

[@midhunmohan2676]

thank you sir , A real help to us

[@khushal2891]

Best course of JS I found !

[@samiransari-fg6kx]

Your voice is very clean it's give me more interest to watch your videos.

[@yashwanth8350]

present mood : Happy happy happy 😼😺

[@_Sujit-khot_]

Same here ❤

[@N-Chance]

😂😂

[@ayushmaithani6548]

vic

[@tusharsharma2359]

Banana cat happi 😺

[@gamingwithnegi7575]

This comment is everywhere in happy s video

[@dpmshooterspubg643]

great work and thank you for this one hour summary about js , i am waiting for ur up-coming videos...

[@interviewhappy]

Thanks and all the best for your career.

[@ankurjadhav2523]

Sir this video is very useful it has cleared my concepts. Please make a similar video on Java, Html and css also. 👍

[@TapaNKSamaL]

The way you understood, Just super. 👍 Can you cover more important topics related to JavaScript....ty

[@saidevadiga]

Nice explanation. Easy to understand...

[@mithunr4740]

very useful video. thank you dude. your explanation very good👍👍👍

[@ankitvishwakarma9937]

Very Helpfull Thanks a lot bhaiya ❤

[@vaishnaviwarang1583]

Amazing content! I am preparing for interviews and this is very helpful, so precisely explained. Would love to see part2 :) Thankyou in advance

[@interviewhappy]

Thanks Vaishnavi. I am working on part 2 :)

[@user-iz8du7vr4p]

​@@interviewhappythanks sir for this video, eagerly waiting for the 2nd part, also can u make one video for the react also!! 🙏🙏

[@vinodwaghmare5180]

Simple yet amazing explanation 💯

[@interviewhappy]

Glad you think so! @vinod

[@gmjitendra]

You are so good to capture these interview questions.Your explanation skill is also extremely good. thanks for sharing

[@interviewhappy]

Glad it was helpful! @jitendra

[@neelsoni13062]

Extremely Helpful ❤

[@johnnyjack2986]

soo much satisfaction after watching full lecture. Fully impressed.

[@interviewhappy]

Glad to hear that. Thanks for liking it @johnnyjack2986

[@nadikakpathirana]

Very clear explained. Thank sir.

[@interviewhappy]

You are welcome @nadolaloshala8678

[@santiaguchis]

this video is great!!!

[@pranshugupta227]

Thank you sir....amazing video and helpful too

[@interviewhappy]

Glad you liked it @pranshugupta227

[@Poonam-vx5cu]

Amazing explanation 🤩

[@hpWorldVlogs]

You are a very good teacher with simplicity of logics that you have shown here. Please keep it up. Great Job @Happy.

[@interviewhappy]

Thanks. Wish you all the best.

[@gauravverma4077]

Thanks sir to clear my basic doubt

[@sharan.medamoni8072]

thanks for, explaining this course , We are hoping that much advance & pratical implementation also should be there Thank You

[@AC-tj3xv]

The content is soo good and explanation as well, can you please upload advanced interview questions in JS and react as well

[@interviewhappy]

Yes sure will try to upload soon @AC-tj3xv

[@benaiahmolino9983]

Thank you for making this topics clear and simple!

[@shubhamdwivedi1259]

Such an amazing content, cleared my all concept.

[@interviewhappy]

Thanks Shubham and all the best for your career.

[@oscarmurillo2200]

Excelent video. thank you!

[@padmapriyag4215]

thank a lot.. and clear explanations u have given ...

[@interviewhappy]

Welcome Padma. Wish you all the best for your career.

[@dips3122]

Very good session. Very well covered js topics. Thank you for your efforts and making it available without any cost. I am referring to all your videos for preparation. Thank you😊

[@interviewhappy]

Thanks and welcome @dips

[@sudhamohanv272]

Good explanations, watched your old videos too. Gives motivation along with subject. Great job @happy.Thank you I am requesting please do on certification related, it’s importance, and where to get etc..

[@interviewhappy]

Sure I will brother . Trying to cover topics one by one @sudhamohanv 272

[@sudhamohanv272]

@@interviewhappy Thank you…

[@shraddhayadav5299]

Very good explanation..

[@ramghodke8599]

this session is very much helpful, to clear deeply our concepts, thanks

[@interviewhappy]

You're most welcome@ramghodke8599

[@coolgirlsharu]

I have learnt many topics from this video 😊😊😊🎉🎉🎉, im very happy from this. I was not knowing many things from last 3 years clearly.

[@interviewhappy]

Glad to hear that. Thanks for appreciating my efforts . Good words means a lot @appusharu5657

[@DK-hn9or]

Most valuable video for hour before an interview ❤

[@interviewhappy]

I am glad you liked it @Dk-hn9or

[@jagadeeshmadhura3223]

I like the explanation along with code , great video ❤

[@interviewhappy]

Happy to hear that! @jagadeeshmadhura3223

[@mitch1668]

So glad I found your channel. You explain everything so clearly!

[@interviewhappy]

I'm so glad!

[@b28venkatasivakalyankaliki81]

Thank you sir This short video covered each and every Concept thanks a lot sir for your advice of not giving up ❤❤🔥🔥

[@interviewhappy]

Your welcome @b28venkatasivakalyankaliki81 . It's my pleasure

[@johnvalishaik8664]

Thank you so much sir your explanation way really super 👌

[@areebahmed1773]

very nicely explained. Thank you

[@interviewhappy]

Thanks Ahmed. Glad you liked it. All the best for your career.

[@user-gi9ve6uj6g]

45:48 I go through various video when I was learning c++, java(best in OOPS concept) and also JavaScript class was confusing for me but today you naild it and clear class concept, Thank you!

[@user-or6on7tx5h]

Awesome sir

[@vivektiwari8667]

was a amazing video, But you left some important Question like:- Clouser, Lexic Scope, spread and Rest Operator, Destructring, First class function, Pure and impure Function, function currying, Map filter and reduce, call apply and bind, prototype chaining. Thanks a lot.

[@interviewhappy]

Great catch, that is slightly next level and I will cover then soon.

[@amarendrakaranam1334]

Great video ever I've watched on JS. Kudos to you☺

[@interviewhappy]

Glad you enjoyed it!@amarendrakaranam1334

[@AbhishekKumar-hb5uj]

Thanks, you sir, It is a great video, But I have a small request, there should be one more question i.e. Map, filter, and reduce. Because almost every interview I attended, I was asked this.

[@user-jl2qn2bl4c]

Such a nice video really helpful...Thank-you

[@interviewhappy]

Thanks and Glad it was helpful @user-ji2qn2bl4c

[@arunkumarm5963]

very useful, keep rocking🤩

[@abilashinib7638]

Very good for my last-minute revision. Even beginners would find it simple to understand. Thank you very much. Sir, you have made me too happy.

[@interviewhappy]

You are most welcome @abilashinib

[@abilashinib7638]

I cracked it sir once again thank you so much 🎉

[@sree2970]

Worth watching sir, please do video on HTML for beginners like non IT background

[@gorlechandu4314]

sir your teaching is very nice each and every concept also explain good sir

[@rehmanshoaib8896]

Amazing sir I had search lot of videos but this video is really much helpful keep growing sir ❤❤❤

[@interviewhappy]

Thanks Rehman and all the best for your career.

[@RabbagunduMadhavi]

These questions are very helpful. Thank you

[@interviewhappy]

Glad it was helpful @Rabbagundumadhavi

[@logicalhat]

Amazing video for interview, thanks a lot 😊

[@interviewhappy]

Glad you enjoyed it! @logicalhat

[@Alkane051]

thank you so much sirr, God Bless You... sir , you are the best teacher of JS...

[@interviewhappy]

You are most welcome

[@estefaninoelylopezguillen3808]

this video is awesome!! thank u so much

[@interviewhappy]

Thanks and all the best for your career.

[@PeterChapman-py]

Thank you!! Haven't seen a collection such as this, very helpful!

[@interviewhappy]

Glad it was helpful!

[@Venkatmopuri22-qr7ci]

Tq soo much sir.....

[@crizzzcDas]

Subscribed, Liked, Thanks a lot Bro...😍😍🤝

[@atulsaini7013]

Thank you so much sir.This question are very very important for Interview 🎉🎉❤

[@interviewhappy]

Most welcome and Thanks for appreciating @atulsaini7013

[@surabi96]

Thank you sir really helpful video. Nice explanations😊❤👍

[@interviewhappy]

Most welcome @surabi96

[@vineetkumar2899]

Thanks happy for make me happy.I am your new subscriber

[@interviewhappy]

Thanks Vineet and all the best for your career.

[@HiYoutuberLog]

Thank You So Much

[@pranotideshmukh8974]

We would love to learn more in depth lectures of related technologies as well😊

[@suchitachaudhary]

Amazing sir....pls bring 25 more questions of javascript...it will be really very helpful for us.

[@interviewhappy]

Thanks a lot and all the best

[@avaneeshkumar9]

Sir Apki video ne meri bahut help ki. I've cleared SDE interview with help of this video. 14 feb ko joining hai ❤

[@shailajagoud8292]

Kudos to your teaching skills sir👏👏👏

[@interviewhappy]

Thanks Shailaja. All the best for your career.

[@Shalki_Zubin]

really helpful in for last minute interview preparation

[@interviewhappy]

Glad to hear that

[@dadasoborge9011]

One of the best video on the internet...Thank you so much for this❤💥. Can you please make videos on the entire javascript course it will be so helpful for beginners.

[@interviewhappy]

I will try my best @dadasoborge9011

[@Royal-1992]

Excellet Sir, I am watching your videos continuly and i feeling very happy to you are sharing the great knowledge and your teaching method is awesome...🙏😊🙏 And we are very blessed because of you are in the youtube and udemy mediums...😊 I don't have the much words to you to express my gratitude..🙏

[@ShivamPal-xu4ws]

Thankyou sir this vedio helps me alot

[@interviewhappy]

Most welcome

[@ahmedebrahim89]

amazing person

[@Itsmepuneeths]

Most understood video i ever seen since fro i started learning JavaScript . You make me "Happy" by explaining like this. ❤

[@interviewhappy]

Glad you liked it! @puneeths7973

[@manvijain4343]

Excellent explaination.. thankyou

[@interviewhappy]

Welcom Manvi. Wish you all the best for your career.

[@harikrishnanpandyan5684]

We need like this essence of javascript videos... ❤❤❤

[@interviewhappy]

Will upload soon my friend @harikrishnanpandyan5684

[@ArunKumar-jp3cq]

very nice video and way of under standing is excellent.

[@interviewhappy]

Thanks Arun. Glad you liked it. All the best for your career.

[@yuvrajjavalkote9977]

Nice content 🎉keep going Thanks for sharing knowledge 😊

[@interviewhappy]

Your most welcome @yuvraj

[@d.o.nmuzic3802]

Thank you 🙏🏾

[@interviewhappy]

You are so welcome @d.o.nmuzic3802

[@friend1846]

Awesome perfect explanation...👌👌👌👌👌

[@interviewhappy]

Thanks a lot @friend1846

[@neerajkumar-br7sf]

Great video sir

[@interviewhappy]

Thanks @neerajkumar-br7sf

[@devrajsinghchouhan4885]

Tq so much for giving this important concepts in js.😊

[@interviewhappy]

Thanks Dev. All the best for your career.

[@hirushgimhan944]

Excellent content and Excellent explanation sir!

[@interviewhappy]

Many thanks! @hirushgimhan944

[@tusharshiwarkar6479]

sir please make a series on angular basic to advanced interview question answer

[@abhijeetkamble9305]

Your videos are awesome sir please make a video on the JavaScript output series which is asked in the interview

[@interviewhappy]

Will try @ abhijeetkamble9305

[@gauravgol2211]

Thankyou sir, Really appreciate your efforts 💙💙💙💙💙💙

[@interviewhappy]

It's my pleasure @gaurav

[@MunaSwamyC]

You are really great teacher. First time adding comments in youtube.

[@interviewhappy]

Wow, thank you! Hope I add value in your learning @munaswamyC

[@trendylens1370]

thank u soo much for explainning Wow u r Great