Thank you sir! Compared to other KZfaq instructors, you are calm, collected and make everything easy to digest. You get a like from me!

I was asked exactly this at the interview, today. I had no idea what they did. Now I know. Thanks!

that = this ---- The classic arrow functions solved that ugly design pattern. great video!

"Binding outer this to inner this." That's a pretty good explanation for binding this.

great sir! keep going, this the real thing... supporting you till you get success, just keep making these awesome videos up

Its very clear for call and apply. For bind I am very confused. Will do more exercise.

Thanks for these amazing Javascript series, these series are a real lifesaver!

Amazing video, clears all the doubts in a very simple manner

thank you for the awesome. you make javascript understand very easy.

Great and simple explanation thank you so much

Watched more than 10 videos on the same, but this one cleared my concepts

Helpful video

good tips. thx

great work

Must watch video, if anybody want to understand call, bind and apply.

Nearly 3 years before I saw his video related to Angular Testing. I was so impressed, I liked his teaching very much. I became his fan. After 3 years, today I found this video of him. Sorry sir, but this comment's targeted to you. You please speak with your slang sir, don't try to create new slang.

Thanks TechSith. Great Explanation!

Sir, your tutorials are amazing!

This is gold!

Very helpful. Thanks. I think instead of using call/apply, better & shorter now to use es6 spread operator, to copy functionality from obj to obj. Commonly used in react now. Example: function doSomething (x,y,z){ } let args = [a,b,c] doSomething(...args)

@techsith Could also help us clear the difference between call, apply, bind vs prototype vs __proto__ ? As a developer, when/how should you use what?

Very Helpful. Thank you Sir

thank you for sharing valuable knowledge.

you big bro your tutorials are rocking !! Respect !!

Very nicely explained!

Very useful..

Great tutorial

To turn the argument into an array, we could also do make the argument a spread operator when passing it into the function then convert it into an array by saying: Let arrArgs; Let argsToArray= function(){ return arrArgs=[...arguments]; }; Right? And then calling the function argsToArray(1,2,3) should console[1,2,3]?

worth watching it .

Could we also use Array.from() to turn the arguments object into an array? ...

thank you

At 7:03 you had me laugh, great examples thanks

Great video, thank you!

Nice tuto.thanks

excellent video god bless you

This is better than any paid tutorial I have gone through. Thanks why didn't you pass the "this" keyword into [].slice.call(arguments)? Observation: Math.min(...numArray) could also be substituted inplace of Math.min.apply(null, numArray)

You can do Math.min(...numArray); to get same results as apply method

Sir, one confusion I have. When I am declaring a function like const fn = function(something) {} and call it with an object, javascript call function works, but when I try the same with arrow functions like const fn = something => {}, it doesn't work. I tried to print "this" in console with console.dir(this), and I got the object and window object for the two cases respectively. Please let me know why this thing is happening? Sir, your videos cleared many painful areas in JavaScript. Thank you so much.

Sir, I have a same scenario, and want to unit test lion class. Problem is cat calls a function of mamal which returns a promise. How do I unit test this scenario from lion class.

all the concept is going to clear, but where should i will be use bind(). for me , bind has not clear. could you please elborate why new button object is loosely couple bonding with prototype?

How are you defining "that" in the render function without using var, let or const?

Thank you !!

Any idea why the first apply example doesn't work with arrow functions?

I am not sure where I am in my JavaScript learning journey..suppose I practiced all these 52 Videos of advanced JavaScript and thoroughly understood the concepts all these 52 Videos where do I stand in my JavaScript journey...what should I do further to reinforce my learning of JavaScript so as to reach to an expert level?

Please try to provide links to which u refer in ur video... In this video u said u ll provide template string tutorial link 10:23 .. which u haven't provided.. Thanks

Is it correct to say that the spread operator (...) has reduced a lot of the complexity that was brought about by call/apply/bind ? For e.g. We can do min like this using spread operator in es6 :- Math.min(...numArray);

Why when you call the mammal constructor you use this and legs and not only legs????????

Great

At 13.54 I can even use arrow function to get this context ? We don't need to use bind isn't it ?

You said we can use call/apply when we want to borrow functionality from another objects...But Why would you use call or apply to borrow functionality from other objects when you can just simply do obj.FunctionName() inside another object to borrow functionality from other object? Example: var obj = new function(){ this.prop = 'inside obj'; this.Add = function(a,b) {return a+b}; this.getinfo = function(){console.log('inside getinfo of obj object')}; } var anotherObject = new function(){ this.getaddition = function(a,b){ return obj.Add(a,b) }; //borrowed functonality from obj without using bind. } what would be the use case in above example where using call/apply/bind is a must ??

why click loosely bounded to new object? 10:56

About "bind", in myObj object I did render() { this.asyncGet(this.parse); } and it works. So why using bind? Thanks for your great tutorial

With New ES 6 feature, to find out the Minimum value from array use REST operator let myarr= [1,2,3]; console.log(Math.min(...myarr)); Its just FYI for all

Hi Techsith, I am getting "add clicked", when I calling "newButton.click();", how it is different from let looseClick = newButton.click; looseClick(); Running above code in chrome, also when I am executing the code in node console, getting exception i.e. => TypeError: Cannot read property 'content' of undefined. Why this is happening, please clarify.

I was hoping you will continue with angular 4.0,

Easier in ES6 with the spread/rest operator function argsToArray(...args) { console.log(args); } and Math.min(...numArray)

what do you mean by translate your video to other language? like I translate what you said in this video to chinese and send to you, and you will put chinese subtitle as an option in the video???

i spend 1 hour to realize that these functions don't work using arrow function. Or i did wrong ? Do you have any tips that helps me to know when use i have to use arrow function and "normal function" ?

Very difficult to understand. Please maybe make another video.

But Dude the below code works fine.. Is this because i am not using "let" .. can u explain plz var test=function (name){ this.name=name; } test.prototype.click=function(){ console.log("===>"+this.name+" clicked"); } var b=new test('tesing'); b.click();

I am not that much clear with call,for call we are passing obj n value I donot understand this line mammal.call(this,legs) could u pls explain?

Hi sir , I want to translate into Telugu ,pls provide the link

I’m trying to understand bind but I still don’t get it :l

Btw, subbed!

Hehehe, I keep refactoring your functions to fat arrow as you type them unless they're not refactorable!! :0)

@3:55 Javascript - weird language

didn't get how legs property became part of cat by calling mammal.call(this,legs) ? can you please explain the logic behind it?

is there any upcoming React Series?

After 5mins I felt like I was lost in desert , didn't understand this cat example at all😑

Please don't use reserved key words for variable or function

It's hard for me to perceive real world usage each time

Do you stopped angular4

Who the hell are dislikers? what the heck you want more?

Honest question, why in most of the videos your sentences are cut off?

Bind is so confusing

Stop comming in my youtube 😵

Very nicely explained!