diff --git a/.rubocop.yml b/.rubocop.yml
index 54886a93..49c69dcc 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -286,6 +286,8 @@ Style/BisectedAttrAccessor:
   Enabled: true
 Style/CaseLikeIf:
   Enabled: true
+Style/StringChars:
+  Enabled: true
 Style/ClassAndModuleChildren:
   Exclude:
     - test/**/*.rb
diff --git a/lib/jekyll/converters/markdown/kramdown_parser.rb b/lib/jekyll/converters/markdown/kramdown_parser.rb
index 35b663f2..3aab42e0 100644
--- a/lib/jekyll/converters/markdown/kramdown_parser.rb
+++ b/lib/jekyll/converters/markdown/kramdown_parser.rb
@@ -146,18 +146,16 @@ module Jekyll
             ]
           end
 
-          @highlighter = begin
-            if @config.key?("enable_coderay") && @config["enable_coderay"]
-              Jekyll::Deprecator.deprecation_message(
-                "You are using 'enable_coderay', " \
-                "use syntax_highlighter: coderay in your configuration file."
-              )
+          @highlighter = if @config.key?("enable_coderay") && @config["enable_coderay"]
+                           Jekyll::Deprecator.deprecation_message(
+                             "You are using 'enable_coderay', " \
+                             "use syntax_highlighter: coderay in your configuration file."
+                           )
 
-              "coderay"
-            else
-              @main_fallback_highlighter
-            end
-          end
+                           "coderay"
+                         else
+                           @main_fallback_highlighter
+                         end
         end
 
         def strip_coderay_prefix(hash)
diff --git a/lib/jekyll/filters.rb b/lib/jekyll/filters.rb
index 86253e44..63116b1b 100644
--- a/lib/jekyll/filters.rb
+++ b/lib/jekyll/filters.rb
@@ -194,11 +194,9 @@ module Jekyll
       @where_filter_cache[input_id][property] ||= {}
 
       # stash or retrive results to return
-      @where_filter_cache[input_id][property][value] ||= begin
-        input.select do |object|
-          compare_property_vs_target(item_property(object, property), value)
-        end.to_a
-      end
+      @where_filter_cache[input_id][property][value] ||= input.select do |object|
+        compare_property_vs_target(item_property(object, property), value)
+      end.to_a
     end
 
     # Filters an array of objects against an expression
@@ -249,11 +247,10 @@ module Jekyll
       # stash or retrive results to return
       # Since `enum.find` can return nil or false, we use a placeholder string "<__NO MATCH__>"
       #   to validate caching.
-      result = @find_filter_cache[input_id][property][value] ||= begin
-        input.find do |object|
-          compare_property_vs_target(item_property(object, property), value)
-        end || "<__NO MATCH__>"
-      end
+      result = @find_filter_cache[input_id][property][value] ||= input.find do |object|
+        compare_property_vs_target(item_property(object, property), value)
+      end || "<__NO MATCH__>"
+
       return nil if result == "<__NO MATCH__>"
 
       result
diff --git a/lib/jekyll/frontmatter_defaults.rb b/lib/jekyll/frontmatter_defaults.rb
index 3b0d0059..5ad896b2 100644
--- a/lib/jekyll/frontmatter_defaults.rb
+++ b/lib/jekyll/frontmatter_defaults.rb
@@ -198,10 +198,8 @@ module Jekyll
     def matching_sets(path, type)
       @matched_set_cache ||= {}
       @matched_set_cache[path] ||= {}
-      @matched_set_cache[path][type] ||= begin
-        valid_sets.select do |set|
-          !set.key?("scope") || applies?(set["scope"], path, type)
-        end
+      @matched_set_cache[path][type] ||= valid_sets.select do |set|
+        !set.key?("scope") || applies?(set["scope"], path, type)
       end
     end
 
diff --git a/lib/jekyll/path_manager.rb b/lib/jekyll/path_manager.rb
index 941d1673..5d975222 100644
--- a/lib/jekyll/path_manager.rb
+++ b/lib/jekyll/path_manager.rb
@@ -36,13 +36,13 @@ module Jekyll
       def sanitized_path(base_directory, questionable_path)
         @sanitized_path ||= {}
         @sanitized_path[base_directory] ||= {}
-        @sanitized_path[base_directory][questionable_path] ||= begin
-          if questionable_path.nil?
-            base_directory.freeze
-          else
-            sanitize_and_join(base_directory, questionable_path).freeze
-          end
-        end
+        @sanitized_path[base_directory][questionable_path] ||= if questionable_path.nil?
+                                                                 base_directory.freeze
+                                                               else
+                                                                 sanitize_and_join(
+                                                                   base_directory, questionable_path
+                                                                 ).freeze
+                                                               end
       end
 
       private
diff --git a/lib/jekyll/site.rb b/lib/jekyll/site.rb
index 7be4349e..bf35d087 100644
--- a/lib/jekyll/site.rb
+++ b/lib/jekyll/site.rb
@@ -304,10 +304,10 @@ module Jekyll
     # klass - The Class of the Converter to fetch.
     def find_converter_instance(klass)
       @find_converter_instance ||= {}
-      @find_converter_instance[klass] ||= begin
-        converters.find { |converter| converter.instance_of?(klass) } || \
-          raise("No Converters found for #{klass}")
-      end
+      @find_converter_instance[klass] ||= converters.find do |converter|
+        converter.instance_of?(klass)
+      end || \
+        raise("No Converters found for #{klass}")
     end
 
     # klass - class or module containing the subclasses.
diff --git a/lib/jekyll/static_file.rb b/lib/jekyll/static_file.rb
index aa970333..327545ce 100644
--- a/lib/jekyll/static_file.rb
+++ b/lib/jekyll/static_file.rb
@@ -39,14 +39,11 @@ module Jekyll
 
     # Returns source file path.
     def path
-      @path ||= begin
-        # Static file is from a collection inside custom collections directory
-        if !@collection.nil? && !@site.config["collections_dir"].empty?
-          File.join(*[@base, @site.config["collections_dir"], @dir, @name].compact)
-        else
-          File.join(*[@base, @dir, @name].compact)
-        end
-      end
+      @path ||= if !@collection.nil? && !@site.config["collections_dir"].empty?
+                  File.join(*[@base, @site.config["collections_dir"], @dir, @name].compact)
+                else
+                  File.join(*[@base, @dir, @name].compact)
+                end
     end
 
     # Obtain destination path.