Data types

ColdFusion is considered typeless because you do not explicitly specify variable data types. However, ColdFusion data, the constants and the data that variables represent, do have data types, which correspond to the ways the data is stored on the computer.

ColdFusion data belongs to the following type categories:

Category

Description and types

Simple

Represents one value. You can use simple data types directly in ColdFusion expressions. ColdFusion simple data types are:

strings, such as "This is a test."

integers, such as 356

real numbers, such as -3.14159

Boolean values, True or False

date-time values, such as 3:00 PM July 12, 2001

Complex

A container for data. Complex variables generally represent more than one value. ColdFusion built-in complex data types are:

arrays

structures

queries

Binary

Raw data, such as the contents of a GIF file or an executable program file

Object

COM, CORBA, Java, web services, and ColdFusion Component objects: Complex objects that you create and access using the cfobject tag and other specialized tags.

Category	Description and types
Simple	Represents one value. You can use simple data types directly in ColdFusion expressions. ColdFusion simple data types are: strings, such as "This is a test." integers, such as 356 real numbers, such as -3.14159 Boolean values, True or False date-time values, such as 3:00 PM July 12, 2001
Complex	A container for data. Complex variables generally represent more than one value. ColdFusion built-in complex data types are: arrays structures queries
Binary	Raw data, such as the contents of a GIF file or an executable program file
Object	COM, CORBA, Java, web services, and ColdFusion Component objects: Complex objects that you create and access using the `cfobject` tag and other specialized tags.

For more information on ColdFusion data types, see Chapter 3, "Using ColdFusion Variables".

Developing ColdFusion MX Applications with CFML
Elements of CFML

Data types

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