Dict.lookup3kaya
Look up a value in a dictionary.
Usage
Maybe<b> lookup( Dict<a, b> dict, a key )
Arguments
dict A dictionary
key The key to lookup
Overview
Look up a value in a dictionary. Returns nothing if the key does not exist, or just(x) if it maps to x
Releases
4 releases since Debian 5.0 (Lenny); the text changed 3 times.