Conditional Types Development Tutorials, Guides & Insights

Here, input can be either a string or a number, and the function handles each case accordingly.

Mapped types allow you to create new types by transforming existing ones. This is especially useful for applying the same transformation to each property in a type.

TypeScript’s type inference allows the compiler to determine types automatically without explicit annotations.

let name = 'Alice'; // inferred as string
let age = 30;       // inferred as number
let isDeveloper = true; // inferred as boolean