RangeError: Maximum call stack size exceeded in Javascript

Question

I am writing a function queue which takes an array (arr) and a number (item) as arguments. Then I add the number to the end of the array, and remove the first element of array. The function should then return the element that was removed.

function queue(arr, item) {

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

return removedItem;  
}   

Then i get this error: RangeError: maximum call stack size exceeded.

Can anyone explain me what is going wrong? In my eyes (beginner), the code looks okay? Thanks in advance!

Answer 1

This is a challenge in Free Code Camp.

The solution in my answer is right. I refreshed the page and it worked.