New creates a new map structure.

Wrap takes the ownership of a built-in map, and return a new map structure.

Counter provides comprehensive statistic functions over a bunch of numbers.

FloatMap is a Map with values as built-in float64 type.

IntMap is a Map with values as built-in int type.

Map is a simple implementation of thread-safe key-value structure just like the built-in map.

MapEntry is the return structure for iterating.

Set is a Map with values as built-in bool type.

StringMap is a Map with values as built-in string type.