VBScript is_nan function

A VBScript equivalent of PHP’s is_nan


Function is_nan(val)
    is_nan = not isNumeric(val)
End Function

Please also note that php.vbs offers community built functions and goes by the McDonald’s Theory. We’ll put online functions that are far from perfect, in the hopes to spark better contributions. Do you have one? Then please just:

Other PHP functions in the math extension