Haskell Language Containers - Data.Map Importing the Module


Example

The Data.Map module in the containers package provides a Map structure that has both strict and lazy implementations.

When using Data.Map, one usually imports it qualified to avoid clashes with functions already defined in Prelude:

import qualified Data.Map as Map

So we'd then prepend Map function calls with Map., e.g.

Map.empty -- give me an empty Map