VBScript conditional short-circuiting workaround

Question

I have a large classic ASP app that I have to maintain, and I repeatedly find myself thwarted by the lack of short-circuit evaluation capability. E.g., VBScript won\'t let you

Answer 1

If you write it as two inline IF statements, you can achieve short-circuiting:

if not isNull(Rs("myField")) then if Rs("myField") <> 0 then ...

But your then action must appear on the same line as well. If you need multiple statements after then, you can separate them with : or move your code to a subroutine that you can call. For example:

if not isNull(Rs("myField")) then if Rs("myField") <> 0 then x = 1 : y = 2

Or

if not isNull(Rs("myField")) then if Rs("myField") <> 0 then DoSomething(Rs("myField"))