Top 25 JavaScript Interview Questions for Beginners 

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).

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

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

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

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

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.

Fantastic video bruh, never seen such a simplified explanation on JS in RU-vid.

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

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

What a great person and great explanation.. inspired

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

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

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

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

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

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

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

Best course of JS I found !

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

very useful, keep rocking🤩

thank you sir , A real help to us

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

present mood : Happy happy happy 😼😺

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

Very Helpfull Thanks a lot bhaiya ❤

Extremely Helpful ❤

Amazing explanation 🤩

Thank you for making this topics clear and simple!

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

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

I like the explanation along with code , great video ❤

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.

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

Simple yet amazing explanation 💯

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!

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

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

Awesome sir

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.

Such an amazing content, cleared my all concept.

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

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

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

Simply superb. Thank you so much.

Nice content 🎉keep going Thanks for sharing knowledge 😊

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

Most valuable video for hour before an interview ❤

Amazing video for interview, thanks a lot 😊

soo much satisfaction after watching full lecture. Fully impressed.

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

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

this video is awesome!! thank u so much

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

Thank you so much sir your explanation way really super 👌

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

Very clear explained. Thank sir.

Very good explanation..

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.

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

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

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😊

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

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

very nicely explained. Thank you

Sir i have completed this mini course for an interview . Thanks❤ sir

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..

Kudos to your teaching skills sir👏👏👏

Worthy Video + Good Voice

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.

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

very nice video and way of under standing is excellent.

Great work! Worthy content with good choice of concepts and effective way of explanation. Keep good work going on. Appreciate it.

superb explaination sir i never have seen this type video ❣❣❣❣❣❣❣

Excellent content and Excellent explanation sir!

Fabulous..

Awesome perfect explanation...👌👌👌👌👌

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

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

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

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

this video is very good and helpful for memorize the concept and make more videos on other topic of Javascript map reduce and await bind and the tricky question in which we face the problem

great bro, explanation is amazing. Thank you

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

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

Tqsm sir i feel I know javascript after watching ur video. 🎉🎉

Your explanation is next level 🎉

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..🙏

Amazing content! I am preparing for interviews and this is very helpfull, Thanks a lot sir

Thanks sir to clear my basic doubt

Thanks a lot dear sir this video is very helpful for beginners

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

Thank you sir, you're very good. Greetings from Serbia.

Omg you teach in best and perfect form . Thanks so much sir

Thankyou Sir You increase my confidence of js

amazing person

Thank you very much sirr.. Now i am cleared regarding basic fundamentals of js after listening this video.. It is useful for me.

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

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

Excelent video. thank you!

Great short course with clear concepts. Thanks alot for making such a video.