Railo 4.2 Reference
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Object Method String.listAppend

Concatenates a list or element to a list.
String.listAppend(string value,[string delimiters]):string

Arguments

The arguments for this function are set. You can not use other arguments except the following ones.
Name Type Required Description
value string  Yes a string value
delimiters string  No Characters that separate list elements. The default value is comma.
If this string contains more than one character, only the first character is used.