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Learn JavaScript Online 
Overview
Content
Reviews
In this course, you’ll learn JavaScript from scratch by building things step by step. You’ll start with simple interactions like displaying messages and buttons that respond to clicks. Then, you’ll teach your code to think using logic, remember things with variables, and make decisions based on the user’s actions. You’ll explore variables, functions, objects, DOM manipulation, event handling, loops, and arrays to build simple yet interactive real-life projects.
You’ll go from writing your first line of code to building mini apps like a quiz, a to-do list, and even your digital pet! Every lesson is project-based and beginner-friendly—designed to help you create, not just code.
By the end, you’ll confidently understand how to control the page, respond to users, and build interactive web experiences.
In this course, you’ll learn JavaScript from scratch by building things step by step. You’ll start with simple interactions like...Show More
WHAT YOU'LL LEARN
An understanding of core JavaScript concepts: variables, functions, DOM manipulation, event handling, conditional statements, loops, and arrays
Hands-on experience creating maintainable, well-structured web applications with an integrated view of HTML and JavaScript
The ability to build a working project that showcases real-world problem-solving in JavaScript
An understanding of core JavaScript concepts: variables, functions, DOM manipulation, event handling, conditional statements, loops, and arrays
Show more
Content
58 Lessons15 Quizzes
1.
Talk to the Web
17 Lessons
Make things appear, change, and respond.
Say Hello to the BrowserQuiz: Say Hello to the BrowserProject: Say Hello to the BrowserMake the Page Talk BackQuiz: Make the Page Talk BackProject: Make the Page Talk BackMake Math Happen InstantlyQuiz: Make Math Happen InstantlyProject: Make Math Happen InstantlyCreate a Button That TalksQuiz: Create a Button That TalksProject: Create a Button That TalksReact to the UserQuiz: React to the UserProject: React to the UserFinal Project: Emoji Mood SelectorSolution: Emoji Mood Selector
2.
Teach It to Think
17 Lessons
Add logic, memory, and branching.
Remember StuffQuiz: Remember StuffProject: Remember StuffMake DecisionsQuiz: Make DecisionsProject: Make DecisionsCreate a Smart ButtonQuiz: Create a Smart ButtonProject: Create a Smart ButtonCount and RepeatQuiz: Count and RepeatProject: Count and RepeatMake a List, Check It TwiceQuiz: Make a List, Check It TwiceProject: Make a List, Check It TwiceFinal Project: Colorful ButtonSolution: Colorful button
3.
The Page Is Yours
17 Lessons
Control the DOM like a wizard.
4.
Build Real Things
7 Lessons
Create and launch real, small projects.
Certificate of Completion
Showcase your accomplishment by sharing your certificate of completion.
Developed by MAANG Engineers
Every Educative lesson is designed by a team of ex-MAANG software engineers and PhD computer science educators, and developed in consultation with developers and data scientists working at Meta, Google, and more. Our mission is to get you hands-on with the necessary skills to stay ahead in a constantly changing industry. No video, no fluff. Just interactive, project-based learning with personalized feedback that adapts to your goals and experience.
Trusted by 2.8 million developers working at companies
"It was really good certification course to learn the basic of JavaScript."
Aishwarya Kundur
"These are high-quality courses. Trust me. I own around 10 and the price is worth it for the content quality. EducativeInc came at the right time in my career. I'm understanding topics better than with any book or online video tutorial I've done. Truly made for developers. Thanks"
Anthony Walker
@_webarchitect_
"Just finished my first full #ML course: Machine learning for Software Engineers from Educative, Inc. ... Highly recommend!"
Evan Dunbar
ML Engineer
"You guys are the gold standard of crash-courses... Narrow enough that it doesn't need years of study or a full blown book to get the gist, but broad enough that an afternoon of Googling doesn't cut it."
Software Developer
Carlos Matias La Borde
"I spend my days and nights on Educative. It is indispensable. It is such a unique and reader-friendly site"
Souvik Kundu
Front-end Developer
Hands-on Learning Powered by AI
See how Educative uses AI to make your learning more immersive than ever before.
AI Prompt
Build prompt engineering skills. Practice implementing AI-informed solutions.
Code Feedback
Evaluate and debug your code with the click of a button. Get real-time feedback on test cases, including time and space complexity of your solutions.
Explain with AI
Select any text within any Educative course, and get an instant explanation — without ever leaving your browser.
AI Code Mentor
AI Code Mentor helps you quickly identify errors in your code, learn from your mistakes, and nudge you in the right direction — just like a 1:1 tutor!
Free Resources
Frequently Asked Questions
How long does it take to learn JavaScript?
It typically takes 2–4 weeks to learn the basics of JavaScript with consistent study. To become comfortable building interactive web applications, expect 3–6 months of practice.
How to learn JavaScript?
Here are the steps to learn JavaScript:
- Start with basic syntax: variables, operators, and data types.
- Study control structures (if-else, loops) and functions.
- Learn about objects, arrays, and JSON.
- Practice DOM manipulation for web interactivity.
- Build small projects to apply and reinforce concepts.
Is JavaScript hard to learn?
JavaScript has a moderate learning curve. Its syntax is beginner-friendly, but certain concepts like asynchronous programming and the DOM can be challenging. With practice, these concepts become easier to understand.
Is JS better than Python?
JavaScript and Python are suited for different purposes. JavaScript is essential for web development, while Python excels in data analysis, AI, and backend programming. The choice depends on the project requirements.
Can I learn JavaScript in 3 hours?
In 3 hours, you can cover the basics of JavaScript syntax and write simple scripts. However, to understand the language well enough for practical applications, more time and practice are needed.
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