MapSet.member-question-mark
You're seeing just the function
member-question-mark
, go back to MapSet module for more information.
Specs
Checks if map_set
contains value
.
Examples
iex> MapSet.member?(MapSet.new([1, 2, 3]), 2)
true
iex> MapSet.member?(MapSet.new([1, 2, 3]), 4)
false