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).
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.
Heartfull thanks for your all videos. In Javascript interview videos Top 25 JavaScript Interview Questions for Beginners In callback function question What are CallBack function? V IMP your example explanation function display(x,y,operation){ var result = operation (x,y) ; console.log(result); } display(3,9,add); Sorry for for your effort. I am try to add first line in your code example const add = (a,b) => a+b; I got result, Many many thanks for you. Now i am very very happy,
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!
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
This is a really really helpful video, there is no video on TH-cam which covers mostly all concepts in a single video. Thanks a lot for this. Informative, Detailed and Great explanation with examples. Hats off🫡🫡
The most important difference between primitive and non - primitive data types is that Primitive Data Types are compared by value while non - primitive data types are compared by their reference.
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.
Thanks a lot for creating Js Ivw Qs, got clarity in concepts. Explanations are easy to understand and ur presentation is cool. Love this Ivw Qs series. Tks for Empowering young coders and making world beautiful. Tc Team. Gr8 job.
at 4:58 when you reassign the value of age from 25 to 30, isn't it just updated in the same slot in memory? Why would it be in a different slot if you are replacing the value? Just looking for clarification. Thanks.
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.
Happy I very much would love to have a coding session with you someday, this is your first video of yours that I watched and the value you provided is very much worth worth the watch, thank you
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..
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😊
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.
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
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).
Yes you are correct
21:37
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.
Great catch, that is slightly next level and I will cover then soon.
Sir Apki video ne meri bahut help ki. I've cleared SDE interview with help of this video. 14 feb ko joining hai ❤
owo, common kitna aia tha
Kis company m sde interview tha ?
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.
You are most welcome @abilashinib
I cracked it sir once again thank you so much 🎉
Lots of respect for your hard work and great content. 🎉
Heartfull thanks for your all videos.
In Javascript interview videos
Top 25 JavaScript Interview Questions for Beginners
In callback function question
What are CallBack function? V IMP
your example explanation
function display(x,y,operation){
var result = operation (x,y) ;
console.log(result);
}
display(3,9,add);
Sorry for for your effort.
I am try to add first line in your code example
const add = (a,b) => a+b;
I got result,
Many many thanks for you. Now i am very very happy,
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!
Your voice is very clean it's give me more interest to watch your videos.
Very best interview question for preparation.. thnx a lot😊
This video is amazing! Really helps to sum up what javascript involves.
Amazing content! I am preparing for interviews and this is very helpful, so precisely explained. Would love to see part2 :)
Thankyou in advance
Thanks Vaishnavi. I am working on part 2 :)
@@interviewhappythanks sir for this video, eagerly waiting for the 2nd part, also can u make one video for the react also!! 🙏🙏
Fantastic video bruh, never seen such a simplified explanation on JS in TH-cam.
Glad you liked it! @sumanthn.s.1377
so much easy to perceive and happy to see simple explaination of the hard topics
Glad it helped! @self-taughtlearner6401
sir sir sir .. thank you so much , love from pakistan..
Thanks and all the best for your career.
Sir i have completed this mini course for an interview . Thanks❤ sir
All the best @currentstudy
you really deserve 1M subscriber....from NEPAL
love you Dipesh. All the best for your career.
Amazing sir....pls bring 25 more questions of javascript...it will be really very helpful for us.
Thanks a lot and all the best
You are really great teacher. First time adding comments in youtube.
Wow, thank you! Hope I add value in your learning @munaswamyC
Most understood video i ever seen since fro i started learning JavaScript . You make me "Happy" by explaining like this. ❤
Glad you liked it! @puneeths7973
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
28:33 When callback function is defined and 10 and 5 value is passed along with callback function so how can output be 8.
It Would be 15...
present mood : Happy happy happy 😼😺
Same here ❤
😂😂
vic
Banana cat happi 😺
This comment is everywhere in happy s video
You are so good to capture these interview questions.Your explanation skill is also extremely good. thanks for sharing
Glad it was helpful! @jitendra
Kudos to your teaching skills sir👏👏👏
Thanks Shailaja. All the best for your career.
Sir because of you i got a job, such an amazing work you are doing.
It's my pleasure. Congratulations to my friend.
Most valuable video for hour before an interview ❤
I am glad you liked it @Dk-hn9or
The content is really great with a nice explanation of each concept. It helped me a lot.
Glad to hear that . Thanks a lot @basukunal89
Thank you Happy, this really helped me to quickly revise the concepts.
Requesting the same video on React.
Glad it helped! React already uploaded
This is a really really helpful video, there is no video on TH-cam which covers mostly all concepts in a single video. Thanks a lot for this.
Informative, Detailed and Great explanation with examples. Hats off🫡🫡
You're very welcome! Thanks for appreciating my efforts . @vikaskumar
The most important difference between primitive and non - primitive data types is that
Primitive Data Types are compared by value while non - primitive data types are compared by their reference.
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.
So glad I found your channel. You explain everything so clearly!
I'm so glad!
Tomorrow is my Interview and this video is very helpful 😊
Thankyou Guru jii
Good Luck
Thanks a lot dear sir this video is very helpful for beginners
wc and all the best buddy.
I have learnt many topics from this video 😊😊😊🎉🎉🎉,
im very happy from this.
I was not knowing many things from last 3 years clearly.
Glad to hear that. Thanks for appreciating my efforts . Good words means a lot @appusharu5657
Excellent job with these interview questions, also good luck with your TH-cam channel, you're doing great content, keep it up! 🔥🔥🔥
Thanks so much!@cristiangolu1234
Excellent video, thank you so much - really helped with my interview prep. I was rusty on the fundamental definitions but not any more, thanks again!
Glad it was helpful!
superb explaination sir i never have seen this type video ❣❣❣❣❣❣❣
Thanks. Glad you liked it. All the best for your career.
Thank you sir....amazing video and helpful too
Glad you liked it @pranshugupta227
Amazing set of interview questions and answers!! You give us a positive vibe with your smile 😊
soo much satisfaction after watching full lecture. Fully impressed.
Glad to hear that. Thanks for liking it @johnnyjack2986
Tqsm sir i feel I know javascript after watching ur video. 🎉🎉
Great 👍Thanks and Welcome @syedsuhel6164
Thanks a lot for creating Js Ivw Qs, got clarity in concepts.
Explanations are easy to understand and ur presentation is cool.
Love this Ivw Qs series.
Tks for Empowering young coders and making world beautiful.
Tc Team. Gr8 job.
great work and thank you for this one hour summary about js , i am waiting for ur up-coming videos...
Thanks and all the best for your career.
Your explanation is next level 🎉
Thanks a lot 😊@sujatha204
very nicely explained. Thank you
Thanks Ahmed. Glad you liked it. All the best for your career.
at 4:58 when you reassign the value of age from 25 to 30, isn't it just updated in the same slot in memory? Why would it be in a different slot if you are replacing the value? Just looking for clarification. Thanks.
variable will be pointing to the new value 30, which will be at different address. That's why num, string are immutable in JS
You are a very good teacher with simplicity of logics that you have shown here.
Please keep it up.
Great Job @Happy.
Thanks. Wish you all the best.
Sir Apki video ne meri bahut help ki
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.
I will try my best @dadasoborge9011
Happy I very much would love to have a coding session with you someday, this is your first video of yours that I watched and the value you provided is very much worth worth the watch, thank you
Welcome aboard!
Omg you teach in best and perfect form . Thanks so much sir
Your Welcome bro
This is THE BEST VIDEO I have watched on youtube considering explanations based on Theory as well as Practical !!❤❤
Glad you think so @beinglearner
Thank you sir, you're very good. Greetings from Serbia.
You are very welcome @ludakpzs
Thank you very much sirr..
Now i am cleared regarding basic fundamentals of js after listening this video..
It is useful for me.
Glad you liked it . @chandustrikes2017
really I learned all the advanced concepts in this video. thanks a lot happy☺
We need like this essence of javascript videos... ❤❤❤
Will upload soon my friend @harikrishnanpandyan5684
Such an amazing content, cleared my all concept.
Thanks Shubham and all the best for your career.
Amazing sir I had search lot of videos but this video is really much helpful keep growing sir ❤❤❤
Thanks Rehman and all the best for your career.
thank you so much sirr, God Bless You... sir , you are the best teacher of JS...
You are most welcome
Guru kamaal kar diye aap to ❤🎉 Great ❤🎉
Very clear explained. Thank sir.
You are welcome @nadolaloshala8678
Best Javascript question series ❤
Thank you!! Haven't seen a collection such as this, very helpful!
Glad it was helpful!
Best course of JS I found !
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..
Sure I will brother . Trying to cover topics one by one @sudhamohanv 272
@@interviewhappy Thank you…
Very good summarization of the important concepts Really helpful.
Thank you so much👍 Sir. bahut ache se samjaya Very nice video
this session is very much helpful, to clear deeply our concepts, thanks
You're most welcome@ramghodke8599
very nice video and way of under standing is excellent.
Thanks Arun. Glad you liked it. All the best for your career.
Thank you so much sir.This question are very very important for Interview 🎉🎉❤
Most welcome and Thanks for appreciating @atulsaini7013
Thank you so much sir for creating such an amazing Interview preparation. Today is my Interview and It gives me lots of motivation.💖💓
All the best my friend @hemensanmahilange
@@interviewhappy Thank you very much, sir.
Did you pass
@@lokeshvasnik6872 yes bro, interview was for internship. I was selected.
This video is really helpful for quick revision of javaScript concepts for interview. Thanks sir for sharing this video.
You are most welcome
Lots of respect for your hard work and great content. Thank you Brother
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😊
Thanks and welcome @dips
Bro, you are a fantastic teacher
Thanks bro and all the best for your career
Great short course with clear concepts. Thanks alot for making such a video.
Thanks for great knowledge. Your videos are very much useful. Very simple to understand with very clear code snippets.
Amazing content! I am preparing for interviews and this is very helpfull, Thanks a lot sir
Glad it was helpful! @deepak
Your videos are awesome sir please make a video on the JavaScript output series which is asked in the interview
Will try @ abhijeetkamble9305
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.
Thanks a lot sir! This was really helpful for me as I am preparing for my interviews. God bless and best wishes to you sir ❤
All the best
Thanks sir for your best wishes. I practiced your all questions. It helped me a lot in revising javascript concept 🙏🙏🙏. Your content was very useful.
its really a wonderful .... i always believe in practical..
Sure, soon I will show the practical
sir your teaching is very nice each and every concept also explain good sir
Please make a video on practical interview questions with your subscribers !
Thankyou Sir You increase my confidence of js
Welcome . All the best for your career.
Sir this video is very useful it has cleared my concepts. Please make a similar video on Java, Html and css also. 👍
There is an interview for me tomorrow. Hope this video Helps me...Good Work anyway!!
All the best bro
@@rounakmukherjee1009 thak you very much ❤️❤️❤️
All the best bro. You will crack it.
hey bro, all the best & plz make sure to comment down questions from your interview, it will help viewers
@@MayurPatil-pj2qy sure
Sweetest tutorial I have seen like this kind of awesome tutorial
Thanks so much 😊
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
Thanks Geetika. And all the best for your career.
Thanks happy for make me happy.I am your new subscriber
Thanks Vineet and all the best for your career.
We would love to learn more in depth lectures of related technologies as well😊
Simple yet amazing explanation 💯
Glad you think so! @vinod
very useful, keep rocking🤩
Very straightforward, useful and efficient! Thank you!
Glad you enjoyed it!
Tq so much for giving this important concepts in js.😊
Thanks Dev. All the best for your career.
good sound and clearity
Thanks and all the best for your career.
Contents are so amazing,lots of respect to you.
Thank you so much 😀
thanks for, explaining this course , We are hoping that much advance & pratical implementation also should be there
Thank You