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Intro to JavaScript

A first proper programming course in JavaScript. Start with variables and functions, learn to change a web page as it runs, then finish by building and sharing a small web app of your own.

Level 2 · Explorer11 hours5 chapters9 topicsEnglishAges 8–17

Can follow a lesson and type comfortably

What you'll learn

Variables, data types & functions
Change a page live with the DOM
Handle clicks and key presses
Arrays, conditions & loops
Group data with arrays and objects
Debug and tidy your own code

Course outline

Write your first real programs: store information in variables and teach the computer new tricks with functions.

Variables and data types
Functions