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Learn JavaScript

Learn JavaScript by writing real code with functions, objects, arrays, promises, async/await, modules, and the event loop.

What you'll learn in this JavaScript course

Learn modern JavaScript by writing real code in this comprehensive interactive course. You'll solve challenges that build from variables, functions, and objects to promises, async/await, modules, runtimes, and the event loop.

Chapter List

1
Variables
Learn the basic syntax of JavaScript and how to declare variables
2
Comparisons
Learn how to compare values and write conditional statements
3
Functions
Learn about the different ways to create and execute functions in JavaScript
4
Objects
Objects are one of the most-used JS structures, learn to master them
5
Classes
Learn about classes in JavaScript and how they differ from POJOs and the classes in other languages
6
Prototypes
Explore JavaScript prototypes and how they enable inheritance without traditional classes.
7
Loops
Understand and practice the many ways to iterate over a list of data
8
Arrays
Learn about contiguous memory storage in JavaScript
9
Errors
Practice good error handling with JavaScripts try/catch
10
Sets
Practice using the new ES6 (ES2015) set object for collections of unique values
11
Maps
Learn about the new ES6 map object for collections of key-value pairs
12
Promises
Understand promises and asynchronous programming in JavaScript, as well as the new async/await syntax
13
The Event Loop
Grok one of the most important elusive concepts beknownst to JavaScript developers, the asynchronous event loop
14
Runtimes
Learn about the different JavaScript runtimes and how they differ
15
Modules
ES6 Modules help us organize our code into separate files. Learn how to use them and how they differ from CommonJS.

Join 55,594 students in the Learn JavaScript course

Read reviews of their learning experiences

really good, was in depth and was able to follow. The cherry on top was the small things most people wont go over like modules, bundles es6 etc

(5/5)
Arjun Syam profile image

Arjun Syam

India

this was the most practical in-depth course of js I've ever done.

(5/5)
Brooklee Watters profile image

Brooklee Watters

Utah

pretty good, it's only a language course but it made me more familiar with javascript - something i found confusing before this course.

(5/5)
NhimSu  profile image

NhimSu

Ho Chi Minh City, Vietnam

I finally had to bend my knee to Javascript, after looking down my nose at it since I started programming. Learning all the particularities was way easier in this course than when I started programming, took a look at some frontend focused courses and noped out of it. Great Course, Loved it, I recommend it!

(5/5)
Miguel Vitta profile image

Miguel Vitta

Brazil

This was a great course!! I really enjoyed it and found it mostly easy to follow.

(5/5)
Simon Flynn profile image

Simon Flynn

United Kingdom

nice i love how relatively simple javascript is in connection with python

(5/5)
Sean Bono Macariola profile image

Sean Bono Macariola

Philippines

Good.

(5/5)
A  profile image

A

United States

Engaging, well-structured and highly practical!

(5/5)
Josep Boluda profile image

Josep Boluda

Spain

very good course

(5/5)
Александр Щербаков profile image

Александр Щербаков

Serbia

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Mediocrity doesn't cut it anymore

The only way to become a great developer is to write a lot of code

Avoid tutorial hell

by writing a ton of code

Stay motivated with

a game-like curriculum

Build portfolio projects

to prove your skills

Delve deeper

into foundational concepts

Learn flexibly online

without interrupting your life

For 1% the price of college

to minimize your financial risk

Frequently asked Questions

Got questions? We've got answers

Yes, but we assume you're already familiar with programming basics like variables, conditionals, and functions. You don't need any prior JavaScript experience.