TypeScript Developer Path

Add static types to JavaScript with confidence.

4 lessons · about 31 minutes of reading

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1. 1

   TypeScript for Beginners: Setup and Your First Types

   Install TypeScript, compile your first file, and see how static types catch mistakes before your code runs.

   7 min read

2. 2

   TypeScript Interfaces and Type Aliases

   Describe the shape of objects with interfaces and type aliases, and learn when to use each.

   7 min read

3. 3

   TypeScript Union Types, Narrowing, and Generics

   Combine types with unions, narrow them safely, and write reusable code with generics.

   9 min read

4. 4

   TypeScript tsconfig.json and Strict Mode Explained

   Understand the key tsconfig options and why turning on strict mode catches more bugs.

   8 min read