lib/polyfill/v2_4/array.rb in polyfill-0.7.0 vs lib/polyfill/v2_4/array.rb in polyfill-0.8.0

@@ -1,8 +1,12 @@
+require_relative 'numeric'
+
 module Polyfill
   module V2_4
     module Array
+      using Polyfill(Numeric: %w[#dup])
+
       def concat(*others)
         return super if others.length == 1
 
         acc = [].concat(self)
         others.each do |other|
@@ -11,17 +15,13 @@
 
         replace(acc)
       end
 
       def sum(init = 0)
-        acc =
-          begin
-            init.dup
-          rescue TypeError
-            init
-          end
+        acc = init.dup
 
-        each do |elem|
+        for i in 0..(size - 1) # rubocop:disable Style/For
+          elem = self[i]
           acc += block_given? ? yield(elem) : elem
         end
 
         acc
       end