A problem with VBScript is that it doesn’t allow you to have optional parameters in your procedures. This also means you can’t do function overloading. There are various ways to deal with this but many of them can lead to a maintenance problem and require you to change how your new (“extended”) procedures are called. Ideally, you don’t want to have to change how the function is called each time you extend it. So let’s look at a few ideas here.

Continue reading An Extended Parameters Mechanism for Procedures in QTP →