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Abe Layee
Abe Layee
8,378 Points

return in JavaScript.

I am little lost. Why is return so important in JavaScript? Anyone mind telling me about return keyword in javaScript or why is it so useful to return a fucntion. I copied this code from the JavaScript Basic. I am lost with the return 5 part. I understand the rest except the return 5. Why do we have to return 5 instead of return giveMefive? Can a return in function be any number or variable inside a function? Thank you in advance.

function giveMeFive() {
  return 5; // Why is it 5 instead of giveMeFive?
// prints 5 to the console
console.log( giveMeFive() );

3 Answers

Functions are the actions or verbs in your program. It's common to have a function that returns a value, so that you can use it somewhere else in your program.

Let's take a closer look at that.

// when you call this function, you'll get back the value 5
function giveMeFive() {
  return 5;

// anywhere you write giveMeFive(); you can instead think of it as being the literal number 5

// giveMeFive() executes first, then it's return value is placed into console.log. Then console.log executes, printing 5.
Abe Layee
Abe Layee
8,378 Points

so the return can be any value as long is not many characters. A return can only return one value such as string,boolean,number, and so on. I think I got it now.

It's true that a function can only have one return statement, but you could return an array, or object and get many different values back.

function myName() {
  var fullName = {
    firstName: 'Robert',
    lastName: 'Richey'

  return fullName;

// antime I call myName(), I'll get back an object holding two values.
var name = myName();

console.log("My first name is: " + name.firstName);
console.log("My last name is: " + name.lastName);
Abe Layee
Abe Layee
8,378 Points

Thank buddy for making things clear to me. I apprecaite it man.

My pleasure. Happy to help :)