add_all_copy

Returns a new list that is the concatenation of the elements of this list with those of the given collection.

a.add_all_copy(b) is equivalent to a + b, where a and b are lists.

Examples:

• [].add_all_copy([]) returns []

• [1].add_all_copy([2]) returns [1, 2]

• [[1]].add_all_copy([[2]]) returns [[1], [2]]

Parameters