This is a 0 character length string. It is included as a data type because it is returned by certain functions.
Simple
String
Any collection of 0 or more characters.
Simple
Integer
A number with a range of -2,147,483,648 and 2,147,483,647. For more information as to why this is different than a numeric, see this article Integers and ColdFusion.
Simple
Numeric
Any number. If the number is a decimal, then there must be at least one numeric character before the decimal, even if its a 0.
Simple
Boolean
A value that can mean either true or false. True values can be any non-zero number, the word
TRUE, the text 'true' and 'yes'. False values can be the number 0, the word FALSE, the text
'false' and 'no'.
Formatted String
List
A formatted string of 0 or more characters containing a delimiter between items. Any string
can be viewed as a list and ALL lists are strings.
Formatted String
Date/Time
A string formatted to be understood by ColdFusion as a date or time value.
Formatted String
Query
A ColdFusion Query data set.
Complex
Array
An Array
Complex
Structure
A structure of data
Complex
Object
A 'link' to an external COM, CORBA, EJB or java class. This datatype is used to connect to
the methods and properties of these objects.
Object
Pointer
A 'virtual link' between a structure stored in one variable and a reference to it stored in
another. Any change to either variable will effect the structure.
