JavaScript
From your first console.log to the event loop, data structures and algorithms, the way the videos teach them.
Beginner
Syntax, types, control flow, functions, the built-in collections, errors, files and modules. No experience needed.
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Lesson 16 min read
JavaScript for beginners: your first program, step by step
See what JavaScript actually is, run it in the browser console and with Node.js, and read a thirteen-line program one line at a time.