TypeScript Generics: Practical Patterns for Real Apps

Generics enable reusable, type-safe code. Here are practical patterns you'll use daily.

Basic Generic Constraints#

Generic Factory Functions#

Conditional Types#

Mapped Types#

Template Literal Types#

Generic React Components#

Builder Pattern with Generics#

Discriminated Unions#

Type-Safe Event Emitter#

Use generics to eliminate type assertions, catch errors at compile time, and create flexible APIs.