Stand in Line Challenge freecodecamp.com

StandInLine

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];

// Display Code
console.log("Before: " + JSON.stringify(testArr));
console.log(nextInLine(testArr, 6)); // Modify this line to test
console.log("After: " + JSON.stringify(testArr));