Coldfusion dot-notation: using multiple dots

Written on 23 February 2012, 10:25am

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A refresher about the ColdFusion structures:

ColdFusion structures consist of key-value pairs. Structures let you build a collection of related variables that are grouped under a single name.

Structure notation
ColdFusion supports three types of notation for referencing structure contents. The notation that you use depends on your requirements.

You can refer to a property, prop, of an object, obj, as obj.prop. This notation, also called dot notation, is useful for simple assignments, as in this example:
2. Associative arrays
3. Structure
Adobe Livedocs

What is interesting about the dot-notation, is that using multiple dots in referencing the object property – is allowed.
The following code executes correctly in ColdFusion 8 and outputs ‘Foo’:

<cfset myStruct = StructNew()>
<cfset myStruct.a = '1'>
<cfset myStruct.b = '2'>
<cfset myStruct.c = '3'>

<CFIF #myStruct..a# EQ 1 
	AND #myStruct.....b# EQ 2
	AND #myStruct..........c# EQ 3

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