ListAppend |
Description
Concatenates a list or element to a list.
Returns
A copy of the list, with value appended. If delimiter = "", returns a copy of the list, unchanged.
Category
List functions
Function syntax
    ListAppend(list, value [, delimiters ])
See also
ListPrepend, ListInsertAt, ListGetAt, ListLast, ListSetAt
Parameters
Parameter | Description
list | A list or a variable that contains one.
value | An element or a list of elements.
delimiters | A string or a variable that contains one. Character(s) that separate list elements.
| Default: comma.
| If this parameter contains more than one character, ColdFusion uses only the first
| character.
Usage
ColdFusion inserts a delimiter character before value.
To add an element to the beginning or end of a list, Macromedia recommends that you do so with code such as the following, rather than with the ListAppend or ListPrepend functions:
    <cfset MyValue = "another element">
    <cfif listLen(myList) is 0>
       <cfset myList = MyValue>
    <cfelse>
       <cfset myList = myList & ", " & MyValue>
    </cfif>
The following table shows examples of ListAppend processing:
Statement | Output | Comment
--- | --- | ---
    ListAppend('elem1,elem2', '' )
| elem1,elem2, | Appended element is empty; delimiter is last character in list; list length is 2
ListAppend('', 'elem1,elem2' ) | elem1,elem2 | List length is 2
ListAppend ("one___two", "three", "___") | "one___two_three" | Inserted the first character of delimiters before "three."
Example
    <h3>ListAppend Example</h3>
    <!--- First, query to get some values for our list elements--->
    <cfquery name = "GetParkInfo" datasource = "cfsnippets">
    SELECT PARKNAME,CITY,STATE
    FROM PARKS WHERE PARKNAME LIKE `AL%'
    </cfquery>
    <cfset temp = ValueList(GetParkInfo.ParkName)>
    <cfoutput>
    <p>The original list: #temp#
    </cfoutput>
    <!--- now, append a park name to the list --->
    <cfset temp2 = ListAppend(Temp, "ANOTHER PARK")>
    ...

list |
A list or a variable that contains one.

value |
An element or a list of elements.

delimiters |
A string or a variable that contains one. Character(s) that separate list elements. Default: comma.
If this parameter contains more than one character, ColdFusion uses only the first character.