Confusion on the directions

[Rasha800]

Tell us what’s happening:
Describe your issue in detail here.
nextInLine([2], 1) should return 2

  **Your code so far**

Shouldn’t the nextInLine([2], 1) return 3?
the number 2 refers to the third object or array right?

function nextInLine(arr, item) {
// Only change code below this line
arr.push(item);
return arr.shift([]);
// 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; rv:96.0) Gecko/20100101 Firefox/96.0

Challenge: Stand in Line

Link to the challenge:

freeCodeCamp.org

[JeremyLT]

It can’t return 3

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

for nextInLine([2], 1), 3 isn’t in that array, so its not possible to remove it from the array.

[Rasha800]

I still don’t understand, nextInLine is a function.
it is adding and removing from testArr.
testArr has 1-5 in it,
moving from 0, 2 is the third item on the list, which would be 3.
I’m not understanding my faulty logic.

[JeremyLT]

@Rasha800

it is adding and removing from testArr.

This is not true. It is using whatever array is passed in as the arr argument.

So, nextInLine([2], 1) says, “use the arr = [2], add the item = 1 to the end of the arr, remove the first element of the arr, and return the removed element”

[Rasha800]

Ok, I was reading it wrong, I didn’t realize it was pulling 1 and selecting from 2.
Thank you.