Railo 4.2 Reference
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Object Method Array.contains

Returns the position of the first element in the array that matches the item that we are searching for, or 0 if the item is not found.
Array.contains(object needle,[boolean substringMatch]):number


The arguments for this function are set. You can not use other arguments except the following ones.
Name Type Required Description
needle object  Yes The item that we are looking for in the array
substringMatch boolean  No If set to true then if a then a substring match will also return true. This will only work with simple values. Passing true with complex objects will throw an exception.