DougCal

function palindrome(str) {
  // Good luck!
  var datArray = [];
  var blank = [];
  var isItPalin = "";
  
  datArray = str.split("");
  blank = datArray.reverse();
  isItPalin = blank.join("");
  

DougCal

// Setup
var collection = {
    2548: {
      album: "Slippery When Wet",
      artist: "Bon Jovi",
      tracks: [ 
        "Let It Rock", 
        "You Give Love a Bad Name" 
      ]
    },

DougCal

function nextInLine(arr, item) {
  // Your code here
  var first = arr[0];
  arr.push(item);
  arr.shift();
  return first;  // Change this line
}

// Test Setup
var testArr = [1,2,3,4,5];