Set#delete?

delete?(o)

# File tmp/rubies/ruby-3.3.0/lib/set.rb, line 536
def delete?(o)
  delete(o) if include?(o)
end

Deletes the given object from the set and returns self. If the object is not in the set, returns nil.

See also #delete #delete_if #compare_by_identity? #difference also in 4.1 · 4.0 · 3.4 · 3.2 · 3.1 · 3.0