This functionality is only available for certain module packages.

You are here: Reference > Formula Language > Formulas > Map > Methods for BidiMap > key(Object value)

key(Object value)

Returns the key for the value. The result is <<null>> if the key is not included. If a value exists more than once, one of the values is returned, that means BidiMaps should only be used in cases where either the key and the value are unique.

key(Object value)
Argument Object value Value for which the key is sought.
Return value key Key for the value