Contents

class Hash

  def slice(*keys)
    keys.map! { |key| convert_key(key) } if respond_to?(:convert_key, true)
    keys.each_with_object(self.class.new) { |k, hash| hash[k] = self[k] if has_key?(k) }
  end

  def slice!(*keys)
    keys.map! { |key| convert_key(key) } if respond_to?(:convert_key, true)
    omit = slice(*self.keys - keys)
    hash = slice(*keys)
    replace(hash)
    omit
  end

  def extract!(*keys)
    keys.each_with_object(self.class.new) { |key, result| result[key] = delete(key) if has_key?(key) }
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
happy_support-1.0.0	lib/happy_support/core_ext/hash/slice.rb