Stand in Line is not working please help?

JavaScript
1

Tell us what’s happening:

Your code so far


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

// Test Setup
var testArr = [5,6,7,8,9];

// Display Code
console.log("Before: " + JSON.stringify(testArr));
console.log(nextInLine(testArr, 1)); // Modify this line to test
console.log("After: " + JSON.stringify(testArr));

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.132 Safari/537.36.

Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-javascript/stand-in-line

2

If you run the code you will get the next :slight_smile:
// running tests

nextInLine(, 1) should return 1

nextInLine([2], 1) should return 2

nextInLine([5,6,7,8,9], 1) should return 5

After nextInLine(testArr, 10), testArr[4] should be 10

// tests completed