概要
Array#in_groups_of
詳細
Array#in_groups_of について
サンプル
# encoding: utf-8 require 'active_support/core_ext/array/grouping' require 'tbpgr_utils' I18n.enforce_available_locales = true ary = [*1..5] bulk_puts_eval binding, <<-EOS ary.in_groups_of 2 ary.in_groups_of 3 ary.in_groups_of 2, 'default' EOS ary.in_groups_of(2) do|first, second| puts "#{first}|#{second}" end __END__ ・下記はTbpgrUtils gemの機能 bulk_puts_eval https://rubygems.org/gems/tbpgr_utils https://github.com/tbpgr/tbpgr_utils
出力
ary.in_groups_of 2 # => [[1, 2], [3, 4], [5, nil]] ary.in_groups_of 3 # => [[1, 2, 3], [4, 5, nil]] ary.in_groups_of 2, 'default' # => [[1, 2], [3, 4], [5, "default"]] 1|2 3|4 5|