lib/rubocop/cop/lint/useless_assignment.rb in rubocop-0.46.0 vs lib/rubocop/cop/lint/useless_assignment.rb in rubocop-0.47.0

@@ -10,9 +10,27 @@
       #   assigned but unused variable - foo
       #
       # Currently this cop has advanced logic that detects unreferenced
       # reassignments and properly handles varied cases such as branch, loop,
       # rescue, ensure, etc.
+      #
+      # @example
+      #
+      #   # bad
+      #
+      #   def some_method
+      #     some_var = 1
+      #     do_something
+      #   end
+      #
+      # @example
+      #
+      #   # good
+      #
+      #   def some_method
+      #     some_var = 1
+      #     do_something(some_var)
+      #   end
       class UselessAssignment < Cop
         include NameSimilarity
         MSG = 'Useless assignment to variable - `%s`.'.freeze
 
         def join_force?(force_class)