– Common Function Library Project

ListRemoveDuplicates(lst [, delim])

Last updated August 22, 2005

Version: 1 | Requires: ColdFusion 5 | Library: StrLib

Rated 2 time(s). Average Rating: 4.5

This is a faster alternative to the listDeleteDuplicates() currently in CFLib. It does the same thing, but uses a struct as a set so as to remove the duplicate elements. However, this loses the original order of the list.

Return Values:
Returns a string.


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Name Description Required
lst List to parse. Yes
delim List delimiter. Defaults to a comma. No

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 * Remove duplicates from a list.
 * @param lst      List to parse. (Required)
 * @param delim      List delimiter. Defaults to a comma. (Optional)
 * @return Returns a string. 
 * @author Keith Gaughan ( 
 * @version 1, August 22, 2005 

function listRemoveDuplicates(lst) {
    var i       = 0;
    var delim   = ",";
    var asArray = "";
    var set     = StructNew();

    if (ArrayLen(arguments) gt 1) delim = arguments[2];

    asArray = ListToArray(lst, delim);
    for (i = 1; i LTE ArrayLen(asArray); i = i + 1) set[asArray[i]] = "";

    return structKeyList(set, delim);
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