[JS/Type] 더 명확한 작성법 함수 작성법

	function createCourse(): { name: string; isPaid: boolean } { ... }	function createCourse(): { name: string; isPaid: boolean } { ... }
Return Type	Inferred from the object parameter	Explicitly defined after a colon
Type Safety	Less strict, potential for runtime errors	Stricter, compiler checks for correct return type
Readability	Less clear about the return type	Clearer, self-documenting with explicit return type

 

 

But much a Better option

type User = {
  name : string,
  isPaid : boolean,
  email : string
}

function createUser(user : User) { }