Courses

Write your first code — in TypeScript

course

Write your first code — in TypeScript

Learn the language that just hit #1 on GitHub, from your very first line to real programs — and gain the skill that keeps you in control of AI-written code.

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What you'll learn

Real code, right away
Run your first TypeScript program in minutes, right in the app — no setup needed.
The building blocks
Variables, types, math, decisions, and loops — every idea explained from everyday life, never jargon.
Types: your safety net
The one concept that catches mistakes before your code even runs.
Functions and real data
Package logic you can reuse, and handle lists and structured data like real apps do.
AI-era confidence
Read the code AI writes, spot its mistakes, and stay in control.
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