TypeScript TypeScript Core Types Types in function arguments and return value. String
Example
Example:
function hello(name: string): string {
return `Hello ${name}!`;
}
Here the syntax name: string means that the function can accept one name argument and this argument can only be string and (...): string { means that the return value can only be a string
Usage:
hello('StackOverflow Documentation') // will be return Hello StackOverflow Documentation!
