User Guide

ArrayDeleteAt 471
ArrayDeleteAt
Description
Deletes an element from an array.
When an element is deleted, ColdFusion recalculates index positions. For example, in an array
that contains the months of the year, deleting the element at position 5 removes the entry for
May. After this, to delete the entry for June, you would delete the element at position 5 (not 6).
Returns
True, on successful completion.
Category
Array functions
Function syntax
ArrayDeleteAt(array, position)
See also
ArrayInsertAt
; “Functions for XML object management” in Chapter 35, “Using XML and
WDDX,” in ColdFusion MX Developer’s Guide
History
ColdFusion MX:
• Changed behavior: this function can be used on XML objects.
• Changed thrown exceptions: this function can throw the InvalidArrayIndexException error.
Parameters
Throws
If this function attempts to delete an element at position 0, or specifies a value for position that
is greater than the size of
array, this function throws an InvalidArrayIndexException error.
Example
<h3>ArrayDeleteAt Example</h3><p>
<!--- create an array --->
<cfset DaysArray = ArrayNew(2)>
<!--- populate an element or two --->
<cfset DaysArray[1][1] = "Monday">
<cfset DaysArray[2][1] = "Tuesday">
<cfset DaysArray[3][1] = "Wednesday">
<cfset DaysArray[1][2] = "April 12">
<cfset DaysArray[2][2] = "April 13">
<cfset DaysArray[3][2] = "April 14">
<p>This is what the array looks like before delete:<br>
Parameter Description
array Name of an array
position Array position