Preview Ruby 4.1 is a preview. It can change before the final release. Switch to Ruby 4.0 →

instance method

Set#disjoint?

(::Set[A] | ::Enumerable[A]) -> bool

disjoint?(enumerable) → true or false

static VALUE
set_i_disjoint(VALUE set, VALUE other)
{
    return RBOOL(!RTEST(set_i_intersect(set, other)));
}

Returns whether no element of enumerable is present in self:

Example

set = Set[0, 'zero', :zero]
set.disjoint?([1, 2, 3])    # => true
set.disjoint?([0, 1, 2, 3]) # => false

See also #difference #divide #delete_if #each also in 4.0 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0