functions for type checking, typecasting, formatting,

VBScript Functions

This will provide you with a quick look at the more important VBScript

functions. They include functions for type checking, typecasting, formatting,

math, date manipulation, string manipulation, and more.

Type Checking Functions

These functions allow you to determine the data subtype of a variable or

expression.

§ VarType (expression) returns an integer code that corresponds to the

data type.

§ TypeName (expression) returns a string with the name of the data type

rather than a code.

§ IsNumeric (expression) returns a Boolean value of True if the

expression is numeric data, and False otherwise.

§ IsArray (expression) returns a Boolean value of True if the

expression is an array, and False otherwise.

§ IsDate(expression) returns a Boolean value of True if the expression

is date/time data, and False otherwise.

§ IsEmpty (expression) returns a Boolean value of True if the expression

is an empty value (uninitialized variable), and False otherwise.

§ IsNull (expression) returns a Boolean value of True if the expression

contains no valid data, and False otherwise.

§ IsObject (expression) returns a Boolean value of True if the

expression is an object, and False otherwise