Basic Function Types

Snippet

In TypeScript, you can define the types of the parameters a function receives and the type of the value it returns.

snippet.ts
typescript
function greet(name: string): string {
  return "Hello, " + name;
}

Breakdown

name: string

Specifies that the 'name' parameter must be a string.

): string {

Specifies that the function must return a string value.

From your library