Recently, I’ve seen a lot of performance-critical code that has made heavy use of field variables. For example, an expensive loop might look like this: for (var i:int = 0; i < this.numObjects; ++i). I've recommended to some of the programmers writing such code that they modify it to cache the field variable as a local variable to improve performance. Was I right to recommend this? In today's article I'll examine the read and write times to see if caching field variables locally really improves performance.
Posts Tagged fields
Local Variable Caching
Mar 14
Function Length
Dec 13
In my last article on getProperties, there was one strange finding in the tests of standard classes: the Function class seems to have a length field. What is it? Today we’ll see
Class Bootup
Aug 21
Being allowed to declare and define member variables all at once introduces a question: in which order does the class boot up? Further, if the class has parent classes, how does this change things? Read on for the simple results.
Overriding Variables
Aug 17
AS3 makes some strange things possible. Even stranger, it seems to do this without any warning by its compiler: MXMLC. It seems as though one of these strange things is the ability to override the variables of your parent classes.
