Oh god IE

So, I was coding and testing today (like everyday)… Tried something in IE, worked well. Tried the same thing in FF, got uncaught exception. I was like “what?” Searched for the error on Google, didn’t find much… Now I find out this is what I was trying to do

function x()
{
//code
}

function y()
{
stuff = x();
}

How will this work without me returning anything from x? IE thought this was ok. HOW? I guess I should say “Thanks Firefox.” :beam: