minor code cleanup

lib/capybara/rack_test/form.rb

@@ -17,7 +17,7 @@ class Capybara::RackTest::Form < Capybara::RackTest::Node
     def size; 0; end
     def read; ''; end
     def append_to(_); end
-    def set_encoding(_); end
+    def set_encoding(_); end # rubocop:disable Naming/AccessorMethodName
   end
 
   def params(button)

lib/capybara/selector/filter_set.rb

@@ -101,11 +101,10 @@ module Capybara
     private
 
       def options_with_defaults(options)
-        expression_filters.chain(node_filters)
+        expression_filters
-                          .select { |_n, filter| filter.default? }
+          .chain(node_filters)
-                          .each_with_object(options.dup) do |(name, filter), opts|
+          .filter_map { |name, filter| [name, filter.default] if filter.default? }
-          opts[name] = filter.default unless opts.key?(name)
+          .to_h.merge!(options)
-        end
       end
 
       def add_filter(name, filter_class, *types, matcher: nil, **options, &block)

lib/capybara/selector/regexp_disassembler.rb

@@ -69,11 +69,8 @@ module Capybara
         suffixes = [[]]
         strs.reverse_each do |str|
           if str.is_a? Set
-            prefixes = str.each_with_object([]) { |s, memo| memo.concat combine(s) }
+            prefixes = str.flat_map { |s| combine(s) }
-
+            suffixes = prefixes.product(suffixes).map { |pair| pair.flatten(1) }
-            result = []
-            prefixes.product(suffixes) { |pair| result << pair.flatten(1) }
-            suffixes = result
           else
             suffixes.each { |arr| arr.unshift str }
           end

lib/capybara/selenium/extensions/html5_drag.rb

@@ -39,10 +39,8 @@ class Capybara::Selenium::Node
         input.set_file(args)
         driver.execute_script DROP_FILE, self, input
       else
-        items = args.each_with_object([]) do |arg, arr|
+        items = args.flat_map do |arg|
-          arg.each_with_object(arr) do |(type, data), arr_|
+          arg.map { |(type, data)| { type: type, data: data } }
-            arr_ << { type: type, data: data }
-          end
         end
         driver.execute_script DROP_STRING, items, self
       end

lib/capybara/selenium/node.rb

@@ -37,9 +37,7 @@ class Capybara::Selenium::Node < Capybara::Driver::Node
   end
 
   def style(styles)
-    styles.each_with_object({}) do |style, result|
+    styles.to_h { |style| [style, native.css_value(style)] }
-      result[style] = native.css_value(style)
-    end
   end
 
   ##