FreeCodeCamp challenge: reverse a string

reverse a stringa FreeCodeCamp challenge

Reverse the provided string.

You may need to turn the string into an array before you can reverse it. Your result must be a string.

Here are some helpful links:

Global String Object
String.prototype.split()
Array.prototype.reverse()
Array.prototype.join()

function reverseString(str) {
    var result = str.split('').reverse().join('');
    console.log('RETURN => ', result);
    overlay(result);
    return result;
}