Set#empty?

() -> bool

empty?

# File tmp/rubies/ruby-3.4.1/lib/set.rb, line 307
def empty?
  @hash.empty?
end

Returns true if the set contains no elements.

See also #each #filter! #divide #flatten also in 4.1 · 4.0 · 3.3 · 3.2 · 3.1 · 3.0