Inconsistent length for NodeList

Question

So, I'm experimenting with html/css/js for the first time and I've encountered and issue that doesn't make much sense (at least to me).

So, when the page is loaded I insert some options in a <ul> (The options are NOT there since the begginning). After all of the options have been inserted I try to get all of them using something along:

const dropdown = document.getElementById("selector");
const children = dropdown.childNodes;

However when I use console.log(children) I'm getting something like this:

But when I use children.length I'm getting the value of 0. What could I be doing wrong?

Answer 1

So, sry for the trouble but apparently I need to wait a bit before trying to fetch it all. I added a setTimeout to the function that retrieves it and now it works. Thanks all!