List.keydelete
You're seeing just the function
keydelete, go back to List module for more information.
Specs
keydelete([tuple()], any(), non_neg_integer()) :: [tuple()]
Receives a list of tuples and deletes the first tuple
where the element at position matches the
given key. Returns the new list.
Examples
iex> List.keydelete([a: 1, b: 2], :a, 0)
[b: 2]
iex> List.keydelete([a: 1, b: 2], 2, 1)
[a: 1]
iex> List.keydelete([a: 1, b: 2], :c, 0)
[a: 1, b: 2]