MapSet.intersection

You're seeing just the function intersection, go back to MapSet module for more information.

intersection(map_set, map_set)

Specs

intersection(t(val), t(val)) :: t(val) when val: value()

Returns a set containing only members that map_set1 and map_set2 have in common.

Examples

iex> MapSet.intersection(MapSet.new([1, 2]), MapSet.new([2, 3, 4]))
#MapSet<[2]>

iex> MapSet.intersection(MapSet.new([1, 2]), MapSet.new([3, 4]))
#MapSet<[]>