TypeScript
Building Type-Safe API Clients From OpenAPI Schemas
Stop hand-maintaining API interfaces that drift from the backend — generate them from OpenAPI and turn breaking changes into compile errors.
3 min read
Category
TypeScript
10 articles
TypeScript
Declaration Files and Publishing Types Other People Will Actually Use
How .d.ts files, module augmentation, and package.json exports maps work together, and the mistakes that quietly break your library's consumers.
3 min read
TypeScript
The TypeScript Strictness Flags Actually Worth Turning On
A practical walkthrough of the compiler flags beyond strict: true that catch real bugs, plus how to adopt them on a large legacy codebase.
3 min read
TypeScript
Discriminated Unions for Modeling State You Can Actually Trust
Replace scattered boolean flags with discriminated unions to make impossible UI and reducer states unrepresentable, not just unlikely.
3 min read
TypeScript
The satisfies Operator: Type Safety Without Losing Inference
Learn why satisfies beats plain annotations and as const for config-like objects, keeping literal types intact while still checking shape.
3 min read
TypeScript
unknown vs any vs never: Picking the Right Escape Hatch
any, unknown, and never look like the same category of weird type but do opposite jobs — here's when each one is actually the right choice.
3 min read
TypeScript
Type Narrowing and Control Flow Analysis, Beyond typeof
A tour of how TypeScript actually narrows types through your control flow, from typeof guards to custom predicates, and where narrowing quietly breaks.
3 min read
TypeScript
Template Literal Types in Practice
Template literal types can enforce structure in strings like event names, route params, and object paths — and know exactly where to stop using them.
2 min read
TypeScript
Conditional and Mapped Types: Building Your Own Utility Types
Partial, Pick, and Readonly aren't compiler magic — learn the conditional and mapped types they're built from, and use them to write your own.
3 min read
TypeScript
TypeScript Generics: From First Principles to Real Constraints
Generics keep the type information any throws away — how to write them, constrain them with extends, and know when a plain union is the better call.
3 min read