Contents

# encoding: utf-8
require 'open_classes/object'
require 'open_classes/module'
require 'open_classes/array/together_helper'

# Array
class Array
  include TogetherHelper

  # Arrays bulk shift.
  #
  # together_shift has alias :tshift
  #
  # not empty case
  #   lists = [[1, 2], [5, 6]]
  #   ret = lists.together_shift
  #   print ret # => [1, 5]
  #   print lists # => [2, 6]
  #
  # empty case
  #   lists = [[], []]
  #   ret = lists.together_shift
  #   print ret # => [nil, nil]
  #   print lists # => [[], []]
  #
  # not empty case with args
  #   lists = [[1, 2], [5, 6]]
  #   ret = lists.together_shift 2
  #   print ret # => [[1, 2], [5, 6]]
  #   print lists # => [[], []]
  #
  # not empty case with args
  #   lists = [[], []]
  #   ret = lists.together_shift 2
  #   print ret # => [[], []]
  #   print lists # => [[], []]
  def together_shift(count = nil)
    if_not_contain_array_rails_type_error
    if count.nil?
      reduce([]) { |ret, list|ret << list.shift }
    else
      reduce([]) { |ret, list|ret << list.shift(count) }
    end
  end

  alias_method :tshift, :together_shift
end

Version data entries

115 entries across 115 versions & 1 rubygems

Version	Path
tbpgr_utils-0.0.151	lib/open_classes/array/together_shift.rb
tbpgr_utils-0.0.150	lib/open_classes/array/together_shift.rb
tbpgr_utils-0.0.149	lib/open_classes/array/together_shift.rb
tbpgr_utils-0.0.148	lib/open_classes/array/together_shift.rb
tbpgr_utils-0.0.147	lib/open_classes/array/together_shift.rb
tbpgr_utils-0.0.146	lib/open_classes/array/together_shift.rb
tbpgr_utils-0.0.145	lib/open_classes/array/together_shift.rb
tbpgr_utils-0.0.144	lib/open_classes/array/together_shift.rb
tbpgr_utils-0.0.143	lib/open_classes/array/together_shift.rb
tbpgr_utils-0.0.142	lib/open_classes/array/together_shift.rb
tbpgr_utils-0.0.141	lib/open_classes/array/together_shift.rb
tbpgr_utils-0.0.140	lib/open_classes/array/together_shift.rb
tbpgr_utils-0.0.139	lib/open_classes/array/together_shift.rb
tbpgr_utils-0.0.138	lib/open_classes/array/together_shift.rb
tbpgr_utils-0.0.137	lib/open_classes/array/together_shift.rb
tbpgr_utils-0.0.136	lib/open_classes/array/together_shift.rb
tbpgr_utils-0.0.135	lib/open_classes/array/together_shift.rb
tbpgr_utils-0.0.134	lib/open_classes/array/together_shift.rb
tbpgr_utils-0.0.133	lib/open_classes/array/together_shift.rb
tbpgr_utils-0.0.132	lib/open_classes/array/together_shift.rb