While I was working on last week’s article it became apparent that something strange was going on with the arguments keyword in AS3. Last week I showed that even after you’ve changed the parameters of a function, you can still get the original values by indexing into arguments. This implies a copy and a copy implies a slowdown. Read on to see if there really is a slowdown and, if there is, what kind of performance impact there is.
Posts Tagged var args
Inlining Math Functions
Nov 13
As a followup to my article on Inlining Math.ceil(), I decided to inline some more functions in the Math class. Read on for the code as well as tests proving correctness and speed.
Var Args Is Slow
Nov 9
Var args (a.k.a. …rest) is a useful feature introduced in AS3. Previously in AS2 (and JavaScript still), we were forced to pass an Array of arguments where an unlimited-length argument list would have been much natural. Unfortunately, this can be really slow. In this article I’ll show a much quicker way to pass unlimited arguments to functions.
