Salesforce JavaScript Developer 1 certification series | Session 2

In this tutorial, you will learn the some key concepts of Javascripts like Objects, Functions, and Classes. I am covering the following topics in this session
1. Arrays
2. Arrays Methods
3. Looping In JavaScript
4. Scope
5. Hoisting
6.Strict Mode
7. ‘this’ keyword in js
8. Functions in js
9.Arrow Function
10 Closures
11. Object Destructuring
12Date Object
13 Date Methods
15. Spread vs Rest Operator
16. Object Prototype and the Prototype chain
17. Object Inheritance
18. Class and class inheritance in JS
19. JavaScript Decorators
20 Modules exporting in js
21 Modules importing in js

LINKS AND CODE USED IN THIS VIDEO
======================
Exam Guide

GITHUB

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[МихайлоСавченко-рэ]

"Global variables like stars - everybody can see them" - perfect explanation!

[Rishabhkumar-xsqg]

undefined
20
Since, because the variable again get declare and because of hosting in the local scope. It declared as var variable and es6 compiler set it to undefined.
10
20
Where as in second it is referring to the same global scoped variable.

[farahsherif]

Couldn't thank you enough for the clarification of the difference between "this" in arrow function vs normal function.

[DaveGalligher]

Thanks so much for putting this information together. There is a lot of stuff to cover, appreciate your well-thought-out explanations.

[progressiveG]

Can't thank you enough for this wonderful series

[LifeIsGood]

2:26:02, You CAN use import and export just change this
<script src='app.js ></script>
to this
<script src='app.js type='module' ></script>

Thank you for your effort, keep it up

[ramdevchahar]

Thank you so much, I cleared the exam today, all thanks to you

[sravyareddy]

You’re awesome, Very helpful LWC tutorials
really thankful !

[softwareengineeringandsale]

What a great break down of proto vs prototype

[paullater]

Amazing video with lots of information.. Thanks a ton for taking the time and efforts to compile this video 💯💯

[praveennin]

Cleared exam on 05-Dec-2022. Thank you bro 🙂

[ediogracie]

You are a life saver. Srsly, thank you so much for all your effort.

[banshi]

Very well explained.
When we can except a next video to cover all the remaining topics?

[sdsatish]

1:24 mins - Arrow function can be written as var abc = (x, Y) => (x+y+10)

[premgoswami-lf]

20. As the global scope variable got override within the block scope and declared 20.

[herishsurendran]

Please create a session on salesforce functions.

[pracheechandrakar]

Hi Nikhil, thanks for sharing your knowledge.
Q- A developer has two ways to write a function:
Option A:
function Monster() {
This.growl = () => {
Console.log ("Grr!");
}
}
Option B:
function Monster() {};
Monster.prototype.growl =() => {
console.log("Grr!");
}
After deciding on an option, the developer creates 1000 monster objects.
How many growl methods are created with Option A Option B?

Could you please explain this.

[lachlanburnside]

Great video! Just a question about object inheritance.

I see you're doing this with Dog.prototype =

I did a super quick test and the following seemed to work: Dog.prototype = Animal.prototype

What's the reason for using Object.create? And are there any issues with how I did it?

[surekha]

@Nikhil Karkra
Hi Nikhil,
Awesome sessions from you.Thank you so much! I know Visual Studio Code only.Which code editor was used to create index.js and util.js files in this video?Please help me!

[ayushupadhyaya]

Q1 -> undefined
20

Q2 -> 10
20