When programming (scripting) in VB scripting host, how can I learn what is implemented and what not?
For example, records (or: the structure keyword) are not implemented, but classes (or: the class keyword) isn't.
Dim as <Type> is not allowed, as are all "as" phrases.
You can create properties in classes, but not "as" anything, too.
You cannot inherit from a base class (the "Inherits" keyword is not known).
And so on.
I see the scripting host is a scripting host, so it might make sense to keep its functionality limited.
However, I do not see those limitations documented somewhere in an accessible, or even logcial way, giving all that a meaning. Currently, I am forced to stick to a trial-and-error workflow, plus separate lookups in QTPs online help for every detail I think of (and I might discover others which I forget currently). Is this the reality that Microsoft designed, or am i missing the point?
The question comes up with QTP, which uses Windows scripting host as its scripting language. Sure I can look up each and every detail I am looking for -- but, and these are my main questions:
Where can I find a detailed list, or table, of language differences between the various VBA dialects (and versions?) that covers scripting host as well?
Can one give a (simple) reasoning for what is included in scripting host and what not?
VBScript Language Reference on MSDN covers all statements, keywords, functions and other language elements of VBScript. I always refer to it to recollect the exact syntax.
MSDN also has feature comparison guides for VBScript vs. VBA vs. Visual Basic: