TypeScript Generics: A Practical Guide With Real Examples
Generics separate TypeScript beginners from everyone else. Here are the patterns you'll actually reach for in real codebases, explained without the academic fluff.
5 articles found
Generics separate TypeScript beginners from everyone else. Here are the patterns you'll actually reach for in real codebases, explained without the academic fluff.
I put off learning TypeScript decorators for a long time. They looked like unnecessary magic. Then I actually used them on a real project -- and changed my mind. This guide walks through every type of decorator with real-world examples, from Express route handlers to validation patterns.
TypeScript's built-in utility types didn't click for me right away. Then I started building real APIs and they became part of my daily toolkit. Here's a reference guide covering every built-in utility type, plus how to build your own with mapped types, conditional types, and template literal types — with honest notes on which ones actually matter.
When our team decided to migrate to TypeScript, I thought it'd take a week. It took three months. Here's the full story -- what went smoothly, what broke, how we handled strict mode, third-party types, and the build pipeline.
I spent way too long going back and forth on enums versus union types. Here's where I landed after trying both in real projects, covering numeric enums, string enums, const enums, as const patterns, and the actual runtime differences that matter when you're shipping code.