function reverseString(str) {

// Step 1. Use the split() method to return a new array

var splitString = str.split(""); // var splitString = "hello".split("");

// ["h", "e", "l", "l", "o"]

// Step 2. Use the reverse() method to reverse the new created array

var reverseArray = splitString.reverse(); // var reverseArray = ["h", "e", "l", "l", "o"].reverse();

// ["o", "l", "l", "e", "h"]

// Step 3. Use the join() method to join all elements of the array into a string

var joinArray = reverseArray.join(""); // var joinArray = ["o", "l", "l", "e", "h"].join("");

// "olleh"

//Step 4. Return the reversed string

return joinArray; // "olleh"

}

reverseString("hello");