Learn JavaScript

Make programs respond, one clear step at a time.

Start learning 6 lessons · about 1 hours · free
About this track

JavaScript is the language of the web: it brings pages to life, and it also powers servers, apps and tools. Start with values and output, then build up to decisions, loops, functions, arrays and objects. Every lesson includes a quick check, a quiz and a small coding exercise that runs safely in your browser.

Before you start
  • No programming experience needed - start from zero.
  • A modern web browser.
  • Curiosity about how interactive websites work.
  1. Unit 1 · 0/2 lessons

    Getting started

    Run your first code and name the values you use. Badge: First script

    1. 0x001Your first JavaScript programUse console.log to make a program say something. 10 min 0/1 exercises solved 10 min 0/1 exercises solved
    2. 0x102Values and variablesName data with const and let, and work with JavaScript’s basic value types. 12 min 0/1 exercises solved 12 min 0/1 exercises solved
  2. Unit 2 · 0/2 lessons

    Decisions and repetition

    Choose a path and repeat work with loops. Badge: Flow control

    1. 0x203Make decisions with conditionsUse comparisons and if/else to choose what your program does. 12 min 0/1 exercises solved 12 min 0/1 exercises solved
    2. 0x304Repeat work with loopsUse for and while loops to repeat instructions without copying code. 12 min 0/1 exercises solved 12 min 0/1 exercises solved
  3. Unit 3 · 0/2 lessons

    Functions and data

    Build reusable behavior and organize related values. Badge: Data wrangler

    1. 0x405Write reusable functionsBundle instructions into named functions that accept inputs and return results. 12 min 0/1 exercises solved 12 min 0/1 exercises solved
    2. 0x506Group data with arrays and objectsStore ordered lists in arrays and describe things with object properties. 14 min 0/1 exercises solved 14 min 0/1 exercises solved
Gostou da aula? 😆👍
Apoie nosso trabalho com uma doação:
Quero contribuir