Reverse a string in javascript

First we'll create a function called revereString

function reverseString(str){

  return reversedString;
}

Inside the reverseString we will create a variable called reversedString and return it.

function reverseString(str){
  var reversedString;
  return reversedString;
}

Now let's set the reversedString variable to this:

function reverseString(str){
  var reversedString = str.split("").reverse().join("");
  return reversedString;
}

• str.split("") splits the string after every character and puts it into an array.
• .reverse("") reverses the array outputted by split().
• .join("") joins every array element into a string.

To test the program run this

var string = "Hello";
var output = reverseString(string);

console.log(output);
// Expected output "olleH"