Log In
0% completed
All Lessons
Free Lessons (5)
Introduction
About This Course
Evaluate Yourself
Language Basics
Quiz: Hoisting
Solution Review: Hoisting
Challenge: Create an Amount
Solution Review: Create an Amount
Challenge: Check Parentheses
Solution Review: Check Parentheses
Quiz 1: Arrow Functions
Solution Review: Arrow Functions
Quiz 2: Arrow Functions
Solution Review: Arrow Functions
Challenge: Where to Insert
Solution Review: Where to Insert
Quiz: Call, Apply, Bind
Solution Review: Call, Apply, Bind
Quiz 1: Closure
Solution Review: Closure
JavaScript Execution: Call Stack & Event Loop
Immediately Invoked Function Expressions (IIFE)
Quiz: Closure, `setTimeout`, Scopes
Solution Review: Closure, `setTimeout`, Scopes
Quiz: Closure, `setTimeout`, IIFE
Solution Review: Closure, `setTimeout`, IIFE
Challenge: Create Phone Number
Solution Review: Create Phone Number
Challenge: Insert Elements
Solution Review: Insert Elements
Challenge: Bind Function
Solution Review: Bind Function
Quiz: Rest & Spread Syntax
Solution Review: Rest & Spread Syntax
Challenge: Destructuring
Solution Review: Destructuring
Challenge: Array Destructuring
Solution Review: Array Destructuring
Challenge: Return the Cat
Solution Review: Return the Cat
Challenge: Destructure Undefined
Solution Review: Destructure Undefined
Type coercion
Quiz 1: "typeof" Operator
Solution Review: "typeof" Operator
Challenge: Validate Arguments
Solution Review: Validate Arguments
Quiz 1: "instanceof" Operator
Solution Review: "instanceof" Operator
Challenge: Inheritance Check
Solution Review: Inheritance Check
Quiz 2: "instanceof" Operator
Solution Review: "instanceof" Operator
Challenge: Instance of Array?
Solution Review: Instance of Array?
Challenge: Check Instance of Variables
Solution Review: Check Instance of Variables
Quiz: prototype.toString & "typeof"
Solution Review: prototype.toString & "typeof"
Challenge: Array or Not?
Solution Review: Array or Not?
Challenge: Validate the Date
Solution Review: Validate the Date
Event Handling
Quiz: Call Stack & Event Loop
Solution Review: Call Stack & Event Loop
Quiz: Event Bubbling
Solution Review: Event Bubbling
Quiz: Event Capturing
Solution Review: Event Capturing
Quiz: Event Delegation
Solution Review: Event Delegation
Asynchronous Callbacks
Challenge: Callback Functions
Solution Review: Callback Functions
Challenge: Check the Names
Solution Review: Check the Names
Challenge: Asynchronous Callback Functions
Solution Review: Asynchronous Callback Functions
Quiz 1: Promises
Solution Review: Promises
Challenge: Even or Odd?
Solution Review: Even or Odd?
Quiz 2: Promises
Solution Review: Promises
Challenge: Print Numbers Sequentially
Solution Review: Print Numbers Sequentially
Quiz: Async & Await
Solution Review: Async & Await
OOP in JavaScript
Quiz: Native & Host Objects
Solution Review: Native & Host Objects
Quiz: `this` Keyword
Solution Review: `this` Keyword
Challenge: Prototype Property
Solution Review: Prototype Property
Challenge: isPrototypeOf
Solution Review: isPrototypeOf
Challenge: ES6 Classes
Solution Review: ES6 Classes
Quiz: Inheritance
Solution Review: Inheritance
Challenge: Prototypal Inheritance
Solution Review: Prototypal Inheritance
Challenge: ES6 Inheritance
Solution Review: ES6 Inheritance
Quiz: "super" Keyword
Solution Review: "super" Keyword
Challenge: Counting Animals
Solution Review: Counting Animals
Challenge: Let's Make a Burger
Solution Review: Let's Make a Burger
Functional Programming
Quiz: Pure Function
Solution Review: Pure Function
Challenge: Purify the Function
Solution Review: Purify the Function
Challenge: Let's Add Properties
Solution Review: Let's Add Properties
Quiz: Shallow Copy
Solution Review: Shallow Copy
Challenge: Shallow to Deep
Solution Review: Shallow to Deep
Quiz: Higher Order Functions
Solution Review: Higher Order Functions
Challenge: Make Maximum Donuts
Solution Review: Make Maximum Donuts
Challenge: Calculate Score
Solution Review: Calculate Score
What Are Currying Functions?
Challenge: Let's Curry!
Solution Review: Let's Curry!
Quiz: Partial Functions
Solution Review: Partial Functions
Challenge: Make a Sentence
Solution Review: Make a Sentence
Challenge: Club Entry System
Solution Review: Club Entry System
Security
Quiz: Same Origin Policy
Solution Review: Same Origin Policy
Quiz: "strict" Mode
Solution Review: "strict" Mode
Challenge: Catch the Error
Solution Review: Catch the Error
DOM and Web Browser
Quiz 1: DOM
Solution Review: DOM
Quiz 2: DOM
Solution Review: DOM
Challenge: Hide & Show
Solution Review: Hide & Show
Challenge: Get Elements Using Attributes
Solution Review: Get Elements Using Attributes
Challenge: Add a Class
Solution Review: Add a Class
Challenge: Destroy the Button
Solution Review: Destroy the Button
Challenge: Is a Child?
Solution Review: Is a Child?
Practice Mock Interview
The JavaScript Interview Handbook: 100+ Interview Questions
/
...
/
Quiz 1: Closure
Quiz 1: Closure
This lesson will test your basic understanding of closures in JavaScript.
We'll cover the following...
Question 1
Question 2
Question 1
...