instance method

Set#disjoint?

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

disjoint?(set) → true or false

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

Returns true if the set and the given enumerable have no element in common. This method is the opposite of intersect?.

Example

Set[1, 2, 3].disjoint? Set[3, 4]   #=> false
Set[1, 2, 3].disjoint? Set[4, 5]   #=> true
Set[1, 2, 3].disjoint? [3, 4]      #=> false
Set[1, 2, 3].disjoint? 4..5        #=> true

See also #difference #divide #delete_if #each also in 4.1 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0

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