How to learn JavaScript from zero

JavaScript makes web pages interactive and also runs on servers. Build small things from the start: a counter, a to-do list, a weather widget.

Good for: Beginners who want to build websites and web apps. Typical time: 100–150 hours in total, depending on where you start.

The usual order of steps

1
Syntax and basics≈ 25 h
Variables, conditions, loops and functions.
2
The browser and the DOM≈ 25 h
Change a page with code and react to clicks and forms.
3
Data and asynchronous code≈ 25 h
JSON, fetch requests and promises.
4
A framework or Node.js≈ 40 h
React, Vue or a small server with Node.js.
5
Projects and Git≈ 20 h
Two or three finished projects put online.

Free or paid?

Many good courses for each step are free; paid ones usually add a certificate, feedback from a teacher or a fixed schedule. Check the current price, dates and age limits on the provider’s own site before you pay.

Where to look for courses

Search these platforms for “JavaScript”. Compare ratings, prices and the date of the last update before you choose.

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The hours are rough, typical figures, not promises. Plans are made by AI and may contain mistakes.