Railo 4.2 Reference
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Object Method String.listMap

Calls the given closure with every element in the given array.
      the function returns a array that contains all values returned by the closure.
String.listMap(function closure,[string delimiter,[boolean includeEmptyFields,[boolean multiCharacterDelimiter,[boolean parallel,[number maxThreads]]]]]):string


The arguments for this function are set. You can not use other arguments except the following ones.
Name Type Required Description
closure function  Yes filter can be a function/closure that implements the following constructor [function(any value, number index, string list, string delimiter):any].
delimiter string  No delimiter used to separate the string list
includeEmptyFields boolean  No include empty fields or not
multiCharacterDelimiter boolean  No specifying whether the delimiters parameter specifies a multi-character delimiter. If this parameter is true, the delimiters parameter must specify a single delimiter consisting of multiple characters. This parameter enables the ListToArray function to convert a list such as the following to an array of color names: red:|orange:|yellow:|green:|blue:|indigo:|violet.
parallel boolean  No execute closures parallel
maxThreads number  No maximum number of threads executed, ignored when argument "parallel" is set to false