CoQuestLearn JavaScript for beginners, hands-on from the first lesson
JavaScript powers the interactive web. CoQuest breaks it into small, playable steps, from your first console.log to functions, objects and classes.
What the JavaScript course covers
Five units take you from the basics to modern JavaScript.
- Fundamentals: values, variables, const and let, and conditions
- Functions and arrays: loops, arrow functions, map and filter
- Strings and objects: text methods and grouping related data
- Flexible functions: default and rest parameters, and recursion
- Modern JavaScript: destructuring, spread and classes
Practise by writing real code
Every lesson includes an exercise that runs your code against tests in the browser and tells you exactly what passed and what did not. A boss battle at the end of the harder units combines what you have learned into a bigger challenge.
Where JavaScript can take you
JavaScript runs in every web browser, and also on servers and in mobile apps. Learning it opens the door to building websites and web apps, and pairs naturally with HTML and CSS.
Frequently asked questions
Is JavaScript hard for a complete beginner?
It is approachable if you take it in small steps. The CoQuest course introduces one idea at a time and checks your understanding with questions and exercises.
Do I need to set up a code editor?
No. You write and run JavaScript in the built-in editor in your browser.
Should I learn HTML and CSS too?
They work well together. HTML structures a page, CSS styles it and JavaScript makes it interactive. CoQuest has courses for all three.