Railo 4.2 Reference
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Object Method String.listFind

Determines the index of the first list element in which a
specified value occurs. Case-sensitive
String.listFind(string value,[string delimiters,[boolean includeEmptyFields]]):number


The arguments for this function are set. You can not use other arguments except the following ones.
Name Type Required Description
value string  Yes element for which to search
delimiters string  No Characters that separate list elements. The default value is comma.
includeEmptyFields boolean  No if set to true, empty values are included as well