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Learn JavaScript

Learn how to program in JavaScript, the most popular programming language in the world.

What will you learn?

Master the fundamentals of modern JavaScript in this comprehensive interactive course. You'll be writing real-world code in minutes and solving challenges to cement your understanding of JS concepts. Learn how to use the most up-to-date JavaScript features in bite-sized hands on lessons, challenges and quizzes.

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.

Why settle for mediocrity?

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

dopamine-driven development

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

Join over 500,000 students learning modern backend skills

Connect directly with them and others in our flourishing online community

15.2M

lessons completed

90K

courses completed

3.8B

xp earned

I earned my CS degree several years ago, but was unable to land a coding job. I've completed most of the learning path and I'm ecstatic to report I've started my first full-time software engineering role!

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David Kennard

Boston Technologies

Tennessee, USA

The knowledgable developers in the Boot.dev Discord helped me land my first job in just a month!

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Megan Astraus

Strongmind

Arizona, USA

As a Head of Data Science at a consulting company, I'm always looking to improve my skills. After completing almost all Boot.dev has to offer, I can say it's the ideal choice for backend training.

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Isaac Flath

Centriam

Washington D.C. USA

I've been working as a postdoc, and ever since getting my feet wet with code I have been interested in transitioning into tech. I recently completed the back-end path on Boot.dev and just landed my first professional development job!

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Theo

Freie Universität Berlin

Connecticut, USA

As a senior dev, the Boot.dev courses have helped me land my first Go job at Ardan Labs!

Daniel Gerep profile image

Daniel Gerep

Ardan Labs

Cássia Brazil

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Frequently asked Questions

Got questions? We've got answers

It's completely up to you. The time it will take you to be "job ready" will depend on how much you already know, how often you study, and how long you study for. That said, the backend career path takes many people about 12 months.


Absolutely! If you built it, use it. You'll build several personal projects while completing our curriculum, and our final course about finding jobs will show you how to construct a job-ready portfolio.


We're not a $10,000 bootcamp.

We're not a $50,000 university degree.

We are a self-paced, gamified online learning platform for back-end web development. You can learn with us for the price of a gym membership.


You can read all about our methodology here. In a nutshell, we're laser focused on teaching backend-development, which is somewhat of a rarity in online learning. We're also focused on solving what we believe is the hardest problem with online learning: boredom.

If you prefer coding rather than watching, and your struggle with online learning is staying motivated and engaged, we think you'll like learning with us.


Yes! It's free to create an account and start learning. You'll get all the immersive and interactive features for free for a few chapters. After that, if you still haven't paid for a membership, you'll be in read-only (content only) mode.