instance method

Set#|

(::_Each[A]) -> self

set | enum → new_set

static VALUE
set_i_union(VALUE set, VALUE other)
{
    set = rb_obj_dup(set);
    set_merge_enum_into(set, other);
    return set;
}

Returns a new set built by merging the set and the elements of the given enumerable object.

Example

Set[1, 2, 3] | Set[2, 4, 5]         #=> Set[1, 2, 3, 4, 5]
Set[1, 5, 'z'] | (1..6)             #=> Set[1, 5, "z", 2, 3, 4, 6]

See also #^ #add #>= #add? also in 4.1 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0