Haskell Language Containers - Data.Map Deleting Elements
Example
> let m = Map.fromList [("Alex", 31), ("Bob", 99)]
fromList [("Alex",31),("Bob",99)]
> Map.delete "Bob" m
fromList [("Alex",31)]
> let m = Map.fromList [("Alex", 31), ("Bob", 99)]
fromList [("Alex",31),("Bob",99)]
> Map.delete "Bob" m
fromList [("Alex",31)]
