Last Updated: February 25, 2016
· rabidaudio

An elegant way to do reverse order C-style for loops

for(var i=array.length; i-->0; ){

This is awesome because it looks like an arrow i --> 0 but actually you are decrementing i after testing i>0. C/C++ programmers probably knew this already, but I bet there are some web devs out there that will find this as cool as I did. Just don't forget the second semicolon (basically you are leaving the third argument, the code to run at the end of each loop, blank).

I can't take credit for this. I found it on Stack Overflow (via user bobince).