I can't seem to understand what i'm missing or doing wrong

Tell us what’s happening:
Describe your issue in detail here.

any help is appreciated.

  **Your code so far**
function nextInLine(arr, item) {
// Only change code below this line
arr = arr.push(item)

testArr.shift()
return item;

// Only change code above this line
}

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

// Display code
console.log("Before: " + JSON.stringify(testArr));
console.log(nextInLine(testArr, 6));
console.log("After: " + JSON.stringify(testArr));
  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Safari/537.36

Challenge: Stand in Line

Link to the challenge:

“The nextInLine function should then return the element that was removed.”

Currently you are returning item which is the number passed into the function. You want to return the number that was removed from the beginning of the array. I wonder what the return value of shift() is?

Also what is going on here?

and you should use arr, not the array outside your function.