View Problem
Check if a key exists in a map
Given a map pets 
python
fsharp
fsharp
Submit a new solution for python or fsharp
There are 25 other solutions in additional languages (clojure, cpp, erlang, fantom ...)
{joe:cat,mary:turtle,bill:canary} print "ok" if an pet exists for "mary"
pets = dict(joe='cat', mary='turtle', bill='canary')
if ("mary" in pets) print "ok"
if ("mary" in pets) print "ok"
if (Map.mem "mary" pets) then printfn "ok"
if pets.ContainsKey("mary") then printfn "ok"
Submit a new solution for python or fsharp
There are 25 other solutions in additional languages (clojure, cpp, erlang, fantom ...)
