Set#delete_if

delete_if() { |o| ... }

# File tmp/rubies/ruby-3.3.0/lib/set.rb, line 543
def delete_if
  block_given? or return enum_for(__method__) { size }
  # @hash.delete_if should be faster, but using it breaks the order
  # of enumeration in subclasses.
  select { |o| yield o }.each { |o| @hash.delete(o) }
  self
end

Deletes every element of the set for which block evaluates to true, and returns self. Returns an enumerator if no block is given.

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

‹ prev#delete? next ›#difference