Difference Between Null and Undefined ?

05:31

Function Scope Vs. Block Scope

08:40

What is Automatic Semicolon Insertion (ASI) ?

06:06

Difference between Rest and Spread operator?

10:28

When do you get Infinity or -Infinity as output?

07:14

When do you get NaN as output?

07:29

Explain must know points of arrow function.

15:07

How does a "closure" work in JavaScript ?

09:13

How can sum(5)(6) return 11?

12:01

Iterables and Iterators

13:00

Generators

24:29

Memory Management and Garbage Collection

08:02

How do you handle errors in JavaScript code ?

10:29

Explain array & traversal in array.

12:33

Add, Remove, Insert, Replace Elements in Array

12:17

How do you perform search in an array ?

11:47

What is the use of map() method ?

08:44

How to flatten 2D array ?

12:57

How can you sort an array ?

11:20

Explain Array Destructuring ?

08:50

String Basics - [UTF -16] - \u - Unicode

08:50

ES6 Template Literal (String)

05:23

“.length” Property and Search Methods

06:06

Extraction methods

12:22

Case Conversion & replace() Method

07:18

Date and Time Basics

08:34

Date Methods

07:42

Time methods

04:13

What is object literal?

19:27

What is “this” object?

06:02

What is the purpose of call(), apply() and bind()?

08:23

Class, Class expression & Static members

16:13

Inheritance, Subclassing and Extending built-in class

13:26

Destructuring Object Literal

06:16

Map

18:32

Set

07:19

WeakMap() and WeakSet()

06:22

Difference between Document Object and Window Object

07:45

How to handle timer based events ?

10:52

What is event bubbling & event capturing ?

11:32

What is event delegation ?

07:54

How to navigate through DOM ?

00:00

getElementBy()

11:10

querySelector() and querySelectorAll()

04:58

Event Basics

11:33

MouseEvent

12:08

Client XY Vs Page XY Vs Screen XY - Coordinates

05:45

Keyboard Events

07:05

Input Element Events

14:20

oncut - oncopy- onpaste events

04:03

Introduction

04:22

Custom HTMLElement - First step of web component

07:39

Problem without shadow DOM

02:21

Shadow DOM to the rescue

05:11

HTML template - Must know for web components

08:33

Creating component template

03:15

Dynamic Data with Custom Attributes

06:12

Life cycle callbacks

03:32

Changing Attribute on Event

08:57

Deleting Component - disconnectedCallback()

05:14

Setter method - the right approach

01:56

The slot element

04:57

What is a callback function ?

13:09

What is a Promise ?

22:03

Explain Promise.all() Vs. Promise.allSettled() Vs. Promise.race() ?

15:15

Explain functionality of async/await ?

13:50

AJAX and XMLHttpRequest(XHR)

20:21

The "fetch" API

13:04

Async Iterators and Generators

07:36

What is Module ?

07:06

Named Export/Import

14:24

Default Export/Import

06:57

Introduction to Debounce & Throttling

03:30

Debouncing Vs. Throttling - The Concept

03:44

Throttling - Implementation

07:19

Debouncing - Implementation

06:06

Use case - Throttling

02:44

Use case - Debouncing

01:52

Introduction to debugging & Developer Tool

08:37

Understanding Developer tool

08:07

Debugging Pane : Watch, Call stack & Scope

05:26

Debugging Pane : Code Navigation

02:25

Event Listener Breakpoints

03:30

Conditional & Programmatic breakpoints

03:54

What are DOM breakpoints?

04:17

How does XHR/Fetch breakpoints work?

03:20

Exception Breakpoints

02:30

The "console" Object Methods

05:14

console.time() & related methods

03:17

Introduction to Regular Expression

09:41

Regex Character Classes

13:23

Modifier "/m" - Multi line search

04:12

Modifier "/s" & (.) Dot character class

03:36

Unicode Basics & Modifier "/u"

11:09

Using modifier "/u" with Unicode property "\p"

03:05

Character Sets and Range

05:08

Quantifiers

07:55

Greedy & Lazy Behavior

03:41

Boundary Assertions - Anchors

02:33

Word Boundaries - "\b"

04:48

Lookahead x(?=y) & Negative Lookahead x(?!y)

04:17

Lookbehind (?<=y)x & Negative Lookbehind (?<!y)x

03:57

exec() method & lastIndex property

06:27

match() & matchAll() method

04:47

search() method

01:20

split() method

03:45

replace() method

06:08

test() method

01:20

Group Capturing

09:57

Back Reference

04:38

Assignment - Validate whether the first letter of string is in uppercase or not

01:40

Assignment - Validate that a string should begin with a digit

02:05

Assignment - Validate that a string should have a word containing only digits

01:13

Assignment - Validate that a word should contain only letters

02:13

Assignment - Validate for all uppercase character's in the string

02:36

Assignment - Counting vowels & consonants in a string

03:56

Assignment - Validate to find all the double words in a string

03:22

Assignment - Finding a word of a specific number of letters

02:24

Assignment - Validate the date format i.e., (mm/dd/yyyy)

04:31

Assignment - Validate the date value along with its format

06:02

Assignment - Validating email address

06:59

Assignment - Validating IP address

05:09

Assignment - Validating credit card number

10:32

Assignment - Validate whether string is palindrome or not using regex pattern

09:27

Is given value an array or not?

03:04

Remove duplicate values from Array

04:22

Remove null,undefined,0,NaN and ‘ ’ from array?

03:05

Finding Factorial

06:33

Prime Number

15:18

Vowel and Consonant - Algorithm

05:38

Array Intersection and Union - The ES6 Way

04:51

Fibonacci Series

06:43

Reverse Number

08:17