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Remove an entry from a map
Given a map pets 
python
clojure
erlang
erlang
erlang
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{joe:cat,mary:turtle,bill:canary} remove the mapping for "bill" and print "canary"
print pets.pop('bill')
; Maps are immutable
; The following expression will return a new map without the 'bill key
(let [pets '{joe cat mary turtle bill canary}]
(println (get pets 'bill))
(dissoc pets 'bill))
; The following expression will return a new map without the 'bill key
(let [pets '{joe cat mary turtle bill canary}]
(println (get pets 'bill))
(dissoc pets 'bill))
Pet = dict:fetch(bill, Pets0), Pets1 = dict:erase(bill, Pets0), io:format("~w~n", [Pet]),
Pet = ets:lookup_element(Pets, bill, 2), ets:delete(Pets, bill), io:format("~w~n", [Pet]),
{value, Pet} = gb_trees:lookup(bill, Pets0), Pets1 = gb_trees:delete(bill, Pets0), io:format("~w~n", [Pet]),
Submit a new solution for python, csharp, clojure, or erlang
There are 19 other solutions in additional languages (cpp, fantom, fsharp, go ...)
