Gets a list element at a specified position.
Index of the list element at position position.
ListGetAt(list, position [, delimiters ])
ListFirst,
ListLast,
ListQualify,
ListSetAt
If you use list functions on strings that are delimited by a delimiter character and a space, a returned list element might contain a leading space; you use the trim
function to remove such spaces from a returned element. For example, consider this list:
<cfset myList = "one hundred, two hundred, three hundred">
To get a value from this list, use the trim
function to remove the space before the returned value:
<cfset MyValue = #trim(listGetAt(myList, 2))#>
With this usage, MyValue
= "two hundred
", not " two hundred
", and spaces within a list element are preserved.
ColdFusion ignores empty list elements; thus, the list "a,b,c,,,d" has four elements.
<h3>ListGetAt Example</h3> <!--- Find a list of users who wrote messages ---> <cfquery name = "GetMessageUser" datasource = "cfsnippets"> SELECT Username, Subject, Posted FROM Messages </cfquery> <cfset temp = ValueList(GetMessageUser.Username)> <!--- loop through the list and show it with ListGetAt ---> <h3>This list of usernames who have posted messages numbers <cfoutput>#ListLen(temp)#</cfoutput> users.</h3> <ul> <cfloop From = "1" To = "#ListLen(temp)#" index = "Counter"> <cfoutput><li>Username #Counter#: #ListGetAt(temp, Counter)# </cfoutput> </cfloop> </ul>