Gets the first element of a list.
The first element of a list. If the list is empty, returns an empty string.
ListFirst(list [, delimiters ])
ListGetAt, ListLast, ListQualify; Lists in Using ColdFusion Variables in ColdFusion MX Developer's Guide
| Parameter | Description |
|---|---|
|
list |
A list or a variable that contains a list. |
|
delimiters |
A string or a variable that contains one. Character(s) that separate list elements. The default value is comma. If this parameter contains more than one character, ColdFusion processes each occurrence of each character as a delimiter. |
ColdFusion ignores empty list elements; thus, the list "a,b,c,,,d" has four elements.
<h3>ListFirst Example</h3> <!--- Find a list of users who wrote messages ---> <cfquery name = "GetMessageUser" datasource = "cfdocexamples"> SELECT Username, Subject, Posted FROM Messages </cfquery> <cfset temp = ValueList(GetMessageUser.Username)> <p>Before editing the list, it is: <cfoutput>#ValueList(GetMessageUser.Username)#</cfoutput>. <p>(Users who posted more than once are listed more than once.) <!--- Show the first user in the list ---> <p>The first user in the list is: <cfoutput>#ListFirst(temp)#</cfoutput> <p>The rest of the list is: <cfoutput>#ListRest(temp)#</cfoutput>. <p>(Users who posted more than once are listed more than once.) <p>The last user in the list is: <cfoutput>#ListLast(temp)#</cfoutput>