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Retrieve a value from a map
Given a map pets 
python
fsharp
fsharp
fsharp
fsharp
fsharp
Submit a new solution for python or fsharp
There are 22 other solutions in additional languages (clojure, cpp, erlang, fantom ...)
{joe:cat,mary:turtle,bill:canary} print the pet for "joe" ("cat")
print pets['joe']
if (Map.mem "joe" pets) then printfn "%s" (Map.find "joe" pets)
if (pets |> Map.exists (fun key _ -> key = "joe")) then printfn "%s" (Map.find "joe" pets)
let key = "joe"
match (pets |> Map.tryfind key) with
| Some(value) -> printfn "%s" value
| None -> printfn "Key %s not found" key
match (pets |> Map.tryfind key) with
| Some(value) -> printfn "%s" value
| None -> printfn "Key %s not found" key
if pets.ContainsKey("joe") then printfn "%s" pets.["joe"]
if pets.ContainsKey("joe") then printfn "%s" (pets.["joe"] :?> string)
Submit a new solution for python or fsharp
There are 22 other solutions in additional languages (clojure, cpp, erlang, fantom ...)
