# Potential Solution for Where do I belong Challenge

I think I came up with a similar solution to solution 2 on this challenge, but I do sort the array in mine.

I may have just gotten away with something I shouldn’t have while sorting though, since I did not use a compareFunction with sort…but it appears to still work fine.

``````function getIndexToIns(arr, num) {
let sortedArr = arr.sort();
console.log(sortedArr);
for (var i = 0; i < sortedArr.length; i++) {
if (sortedArr[i] < num) {
}
}
}
``````

Can somebody clear up if this is a correct answer that could figure in the solutions or if I exploited something instead and why?

Thank you!

This line will not sort numbers. You can learn more about `.sort` here:

Other question, do you really need to sort numbers to decide the index of incoming number? If I take a queue ticket from the machine I don’t care the order of people in front of (and after) me, I only care how many them, right?

This challenge specifically asks for the array to be sorted:

You can imagine that array is sorted )) Challenge won’t be upset

Yeah I already looked at the specifications of .sort, but the code worked nonetheless. Can you explain why?

It both passed the challenge without any errors, and also upon checking what “arr.sort();” returned on the console log, it returned the original array in the correct order as intended.

If something works it might mean one of two things:

1. All OK
2. Tests are flawed
``````const arr = [414, 50, 9, 5, 12].sort();

console.log(arr); // [12, 414, 5, 50, 9]
``````

By default sort method thinks of items as strings, like so: `['414', '50', '9', '5', '12']` and `414` goes before `5`, as it starts with `4`, just like `dad` would go before `e`.

Ohhh, ok that makes sense, I was using single digit numbers to test it so I didn’t realise! Thanks that cleared up the confusion for me.