Flash Cookbook - Optimisation - Number types used for loops
In this section we will examine the speed of loops with the three number types.
The code is simple:
var a:Number = 0;
var i:int = 0;
for(i = 0; i < 10000000; i++) a = 1;
we just set a number to be 1. Okay, let's run the test above in three cases:
i is an int, uint and Number.
The results:
int 78 ms
uint 94 ms
Number 140 ms
Amazing.