<section id="description">
<p>В информатике <dfn>очередь</dfn> представляет собой абстрактную <dfn>структуру данных, в</dfn> которой элементы хранятся в определенном порядке. Новые элементы могут быть добавлены в конец <code>очереди</code>, а старые элементы извлекаются из начала <code>очереди</code>.</p></section>

function nextInLine(arr, item) {
  // Your code here

  return item;  // 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));


index

Очереди

Stand in Line

<code>nextInLine([], 5)</code> should return a number.

<code>nextInLine([], 1)</code> should return <code>1</code>

<code>nextInLine([2], 1)</code> should return <code>2</code>

<code>nextInLine([5,6,7,8,9], 1)</code> should return <code>5</code>

After <code>nextInLine(testArr, 10)</code>, <code>testArr[4]</code> should be <code>10</code>

javascript-algorithms-and-data-structures

Basic JavaScript

function nextInLine(arr, item) {
  // Your code here

  arr.push(item)

  return arr.shift();  // 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));


function nextInLine(arr, item) {
  // Your code here

 arr.push(item);
 item = arr.shift();

  return item;  // 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));


function nextInLine(arr, item) {
  arr.push(item);

  return arr.shift();  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  item = arr.shift();
  return item;  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  var removed = arr.shift();
  return removed;
}

// 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));


function nextInLine(arr, item) {
  // Your code here
arr.push(item);
  return arr.shift();  // 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));


function nextInLine(arr, item) {
  arr.push(item);
  var num = arr.shift();

  return num;  // 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));


function nextInLine(arr, item) {
  // Your code here
   arr.push(item);
  var removed = arr.shift();
  return removed; // Change this line

  return item;  // Change this line
}

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

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


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

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

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


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  var removed = arr.shift();
  return removed;  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  return arr.shift();;  // 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));


function nextInLine(arr, item) {
  // Your code here
arr.push(item);
item=arr.shift();
  return item;  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  var del = arr.shift()
  return del;  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  return arr.shift();  // 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));


function nextInLine(arr, item) {
  // Your code here
arr.push(item);

  return arr.shift();  // 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));


function nextInLine(arr, item) {
  arr.push(item);
  item = arr.shift();
  return item;  // 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));


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

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

// Display Code
console.log("Before: " + JSON.stringify(testArr));
console.log(nextInLine(testArr, 10)); // Modify this line to test
console.log("After: " + JSON.stringify(testArr));


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

// Test Setup
let 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  item = arr.shift();

  return item;  // 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));


function nextInLine(arr, item) {
  // Your code here
arr.push(item);
  item = arr.shift();
  return item;  // 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));


function nextInLine(arr, item) {
  arr.push(item)// Your code here
  var removed = arr.shift([0])
  return removed;  // 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));


function nextInLine(arr, item) {
  // Your code here
  var ary = arr;
  ary.push(item)
  var item_get  = ary.shift();
  return item_get;  // Change this line
}
nextInLine([], 5);
nextInLine([], 1);
nextInLine([2], 1);
nextInLine([5, 6, 7, 8, 9], 1);
// 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));


function nextInLine(arr, item) {
  // Your code here
arr.push(item);
  return item = arr.shift(0);  // 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));


function nextInLine(arr, item) {
  // Your code here
arr.push(item);
  return arr.shift();  // Change this line
}

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

// Display Code
console.log("Before: " + JSON.stringify(testArr));
console.log(nextInLine(testArr,  10)); // Modify this line to test
console.log("After: " + JSON.stringify(testArr));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  return arr.shift();  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  return arr.shift();  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item)
  return arr.shift();

}

// 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  var shifted = arr.shift();
  return shifted;  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  item = arr[0];
  arr.shift();
  return item;  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  return arr.shift();  // Change this line
}

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

// Display Code
console.log("Before: " + JSON.stringify(testArr));
console.log(nextInLine(testArr, 7)); // Modify this line to test
console.log("After: " + JSON.stringify(testArr));


function nextInLine(arr, item) {
  // Your code here
 
  arr.push(item);
  var removed = arr.shift();
  return removed;

  // 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));


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

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

// Display Code
console.log("Before: " + JSON.stringify(testArr));
console.log(nextInLine([2], 1)); // Modify this line to test
console.log("After: " + JSON.stringify(testArr));


function nextInLine(arr, item) {
  arr.push(item);
  var x = arr[0];
  arr.shift();
  return x;
  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item)
  var item = arr.shift()

  return item;  // 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));


function nextInLine(arr, item) {
  // Your code here
arr.push(item); 
var removed = arr.shift();
  return removed;  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  let x = arr[0];
  arr.shift()
  return x;  // 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));


function nextInLine(arr, item) {
  // Your code here
arr.push(item);
  return arr.shift(item);  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  return arr.shift(item);  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  return arr.shift();
}

// 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  let n= arr[0];
  arr.shift()
  return n;  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  item = arr.shift()
  return item;  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  var reReturn = arr.shift();
  return  reReturn;  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item); // Добавляем элемент в конец массива
  return arr.shift(); // Удаляем первый элемент массива и возвращаем значение удалённого элемента
}

// 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  // item = Array.prototype.shift(arr);
  return arr.shift();  // 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));


function nextInLine(arr, item) {
  // Your code here
arr.push(item);
item = arr.shift();
  return item;  // 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));


function nextInLine(arr, item) {
  // Your code here
  var arr;
  arr.push(item);
  var del = arr.shift(); 
  return del;  // 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));


function nextInLine(arr, item) {
  arr.push(item);
  item = arr.shift();
  // Your code here

  return item;  // 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));


function nextInLine(arr, item) {
  // Your code here
 arr.push(item);
 
 
  return arr.shift(item);  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item)
  c = arr.shift();
  return c;  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  var deleteItem = arr.shift();
  return deleteItem;  // 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));


function nextInLine(arr, item) {
arr.push(item)// Your code here

  return arr.shift();  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item)
  let item2 = arr.shift()
  return item2;  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  
  return arr.shift();  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  return arr.shift();

  return item;  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  item = arr.shift();
  return item;  // 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));


function nextInLine(arr, item) {
  // Your code here
arr.push(item);
return arr.shift();
  return item;  // 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));


function nextInLine(arr, item) {
  arr.push(item);
  return arr.shift();  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  var shit = arr.shift();
  return shit;  // 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));


function nextInLine(arr, item) {
  arr.push(item);
  item = arr.shift();
  return item
  // Your code here

  return item;  // 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));

function nextInLine(arr, item) {
  // Your code here
arr.push(item);
let i = arr.shift();
  return i;  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  let i = arr.shift();
  return i;  // 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));


function nextInLine(arr, item) {
  arr.push(item);
  let del = arr.shift();
  return del;  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  
    
  
  return arr.shift();  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  item=arr.shift();
  return item;  // 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  item = arr.shift()

  return item;  // 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));


function nextInLine(arr, item) {
 arr.push(item);
 return item=arr.shift();
}

// 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));


function nextInLine(arr, item) {
  // Your code here
  arr.push(item);
  let num = arr.shift();

  return num;
  return item;  // 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));
