beginner

Introduction to Programming with JavaScript

Begin your journey into computer programming with Cosmo! You'll learn what programming is, discover the fundamentals of the JavaScript language, and build your first programs step by step.

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1,726 learners

Verified skills you'll gain

DEVELOPING

Computer Science Fundamentals

DEVELOPING

General Programming and Algorithms

Tools you'll use

JavaScript

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Course 2

JavaScript's Building Blocks: Data & Variables

13 lessons

Explore how to store, manipulate, and retrieve data in JavaScript using variables, data types, and basic operations.

Course 3

The Crossroads of Code: Making Decisions

11 lessons

Master decision-making in programming through JavaScript's conditional statements, logical operations, and more handy tools.

Course 4

JavaScript's Auto-Pilot: Mastering Loops

13 lessons

Discover how to automate repetitive tasks in JavaScript through iteration techniques and different loop structures.

Course 5

The Code Toolkit: Creating Functions

13 lessons

Learn to organize code into reusable, modular components through function creation and implementation in JavaScript.

From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11