lib/open_classes/array.rb in tbpgr_utils-0.0.24 vs lib/open_classes/array.rb in tbpgr_utils-0.0.25

@@ -277,10 +277,42 @@
     each { |list|ret << list.delete(value) }
     default_return = block_given? ? yield : nil
     ret.compact.size == 0 ? default_return : value
   end
 
+  # Arrays bulk delete_at.
+  #
+  # together_delete_at has alias :tdelete_at
+  #
+  # if delete_at target is exist
+  #   child1 = [1, 2, 3, 4]
+  #   child2 = [2, 3, 4, 5]
+  #   lists = [child1, child2]
+  #   ret = lists.together_delete_at 2
+  #   print ret # => [3, 4]
+  #   print lists # => output [[1, 2, 4], [2, 3, 5]]
+  #
+  # if delete_at target is not exist
+  #   child1 = [1, 2, 3, 4]
+  #   child2 = [2, 3, 4, 5]
+  #   lists = [child1, child2]
+  #   ret = lists.together_delete_at 6
+  #   print ret # => [nil, nil]
+  #   print lists # => output [[1, 2, 3, 4], [2, 3, 4, 5]]
+  #
+  # if delete_at target is exist(minus index)
+  #   child1 = [1, 2, 3, 4]
+  #   child2 = [2, 3, 4, 5]
+  #   lists = [child1, child2]
+  #   ret = lists.together_delete_at -3
+  #   print ret # => [2, 3]
+  #   print lists # => output [[1, 3, 4], [2, 4, 5]]
+  def together_delete_at(index)
+    if_not_contain_array_rails_type_error
+    reduce([]) { |ret, list|ret << list.delete_at(index) }
+  end
+
   private
 
   def if_not_contain_array_rails_type_error
     each { |f|fail TypeError, "you have to use [Array1, Array2, ...] | #{f.class} is invalid" unless f.class == Array }
   end
@@ -340,9 +372,10 @@
   alias_method :tat, :together_at
   alias_method :tclear, :together_clear
   alias_method :tcompact, :together_compact
   alias_method :tcompact!, :together_compact!
   alias_method :tdelete, :together_delete
+  alias_method :tdelete_at, :together_delete_at
   alias_methods [:together_collect, :tmap, :tcollect], :together_map
   alias_methods [:together_collect!, :tmap!, :tcollect!], :together_map!
   alias_methods [:together_find_all, :tselect, :tfindall], :together_select
   alias_methods [:together_inject, :treduce, :tinject], :together_reduce
 end