Clean Code in JavaScript

Returning

Returning is a shift of control from a function to its caller. It is achieved either via an explicit return statement within the function itself or implicitly when the function runs to completion:

function sayHiToMe(name) { if (name) {   return `Hi ${name}`; } // In the case of a truthy `name` this code is never arrived at // because `return` exists on a previous line: throw 'You do not have a name! :(';}sayHiToMe('James'); // => "Hi James"

Here, you'll notice that we don't bother placing the implied else condition of a falsy name in its own else block (else {...}) as this would be unnecessary. Because we return when the name is truthy, any code following that return statement will therefore only run in the implied else condition. ...