VBScript in a Nutshell

Information Functions

IsArray Function	Returns True if a variable is an array
IsDate Function	Returns True if an expression can be converted to a date
IsEmpty Function	Returns True if a variant variable has not been initialized
IsNull Function	Returns True if an expression evaluates to Null
IsNumeric Function	Returns True if an expression can be evaluated as a number
IsObject Function	Returns True if a variable contains an object reference
Len Function	Returns the length of a variable
LenB Function	Returns the number of bytes needed to hold a given variable
RGB Function	Returns a number representing an RGB color value
ScriptEngine Function	Returns a string representing the scripting language in use
ScriptEngineBuildVersion Function	Returns VBScript’s build number
ScriptEngineMajorVersion Function	Returns VBScript’s major version number
ScriptEngineMinorVersion Function	Returns VBScript’s minor version number
TypeName Function	Returns the data subtype name of a variant variable
VarType Function	Returns a number representing the data subtype of a variant variable