lib/refinements/arrays.rb in refinements-7.11.0 vs lib/refinements/arrays.rb in refinements-7.12.0

@@ -13,11 +13,19 @@
 
       def include *elements
         self + elements.flatten
       end
 
+      def intersperse *elements
+        product([elements]).tap(&:pop).flatten.push last
+      end
+
       def exclude *elements
         self - elements.flatten
+      end
+
+      def mean
+        size.zero? ? 0 : sum(0) / size
       end
 
       def ring &block
         [last, *self, first].each_cons 3, &block
       end