The TypeName Function

The TypeName function returns the subtype of a specified variable.

The TypeName function can return one of the following values:

• Byte - Indicates a byte value
• Integer - Indicates an integer value
• Long - Indicates a long integer value
• Single - Indicates a single-precision floating-point value
• Double - Indicates a double-precision floating-point value
• Currency - Indicates a currency value
• Decimal - Indicates a decimal value
• Date - Indicates a date or time value
• String - Indicates a character string value
• Boolean - Indicates a boolean value; True or False
• Empty - Indicates an unitialized variable
• Null - Indicates no valid data
• <object type> - Indicates the actual type name of an object
• Object - Indicates a generic object
• Unknown - Indicates an unknown object type
• Nothing - Indicates an object variable that doesn't yet refer to an object instance
• Error - Indicates an error

Syntax

TypeName(varname)

Example 1

dim x
x="Hello World!"
document.write(TypeName(x) & "<br />")
x=4
document.write(TypeName(x) & "<br />")
x=4.675
document.write(TypeName(x) & "<br />")
x=Null
document.write(TypeName(x) & "<br />")
x=Empty
document.write(TypeName(x) & "<br />")
x=True
document.write(TypeName(x))

Output:

String
Integer
Double
Null
Empty
Boolean

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