# Where do I belong - How can this solution be right?

Tell us what’s happening:
Somehow this solution got passsed even though I yet do not understand how it can work when num = 0.

``````  **Your code so far**
``````
``````
function getIndexToIns(arr, num) {
let ind = 0;
let arrSorted = arr.sort();
num = Math.floor(num);
for (let i =0; i < arrSorted.length; i++) {
if (arrSorted[i] < num)
ind++
}
return ind
}

console.log(getIndexToIns([40, 60], 50));
``````
``````  **Your browser information:**
``````

User Agent is: `Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:94.0) Gecko/20100101 Firefox/94.0`

Challenge: Where do I Belong

Well, it certainly does:

``````console.log(getIndexToIns([1, 2], 0));
// 0
console.log(getIndexToIns([-1, 1], 0));
// 1
console.log(getIndexToIns([-2, -1], 0));
// 2
``````

Perhaps if you put some logs in there it will help you understand:

``````function getIndexToIns(arr, num) {
let ind = 0;
let arrSorted = arr.sort();
num = Math.floor(num);
for (let i = 0; i < arrSorted.length; i++) {
console.log('for loop, i =', i, '   comparing', num, 'to', arrSorted[i])
if (arrSorted[i] < num) {
ind++
console.log('incrementing to', ind)
}
}
return ind
}
``````

Since you have a working solution, I surrounded it with `[spoiler][/spoiler]` tags.

Thank you! I’ll take that into account for future posts.

1 Like

Cool. Were you able to understand the how the function works?

1 Like

Yes I did, but the reasoning does not come naturally for me when num = 0 so I will have to go back an redo this exercise to see if there is any other way of coming up with the solution. Thank you!

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