diff --git a/core/modules/views_ui/js/views_ui.listing.js b/core/modules/views_ui/js/views_ui.listing.js
index b9386c5..9e92a1e 100644
--- a/core/modules/views_ui/js/views_ui.listing.js
+++ b/core/modules/views_ui/js/views_ui.listing.js
@@ -51,23 +51,24 @@
     }
   };
 
-  //Enable button fix
+  // Enable button fix.
   Drupal.behaviors.viewsEnableFocus = {
     attach: function (context, settings) {
-      $('tr.views-ui-list-disabled li.enable .use-ajax', context).on('click', function(){
+      $('tr.views-ui-list-disabled li.enable .use-ajax', context).on('click', function() {
         // Get element title.
         var title = $(this).closest('tr').attr('title');
         // Listen for changes on upper DOM lists
-        var interval=setInterval(function() {
-          var trs = $('tr.views-ui-list-enabled');
-          trs.each(function(i) {
-            // If upper DOM gets updated get element(based on title) and focus it.
-            if( $(this).attr('title') == title ){
-              $(this).find('a').focus();
+        var interval = setInterval(function() {
+          $('tr.views-ui-list-enabled').each(function() {
+            var $this = $(this);
+            // If upper DOM gets updated get element(based on title)
+            // and focus it.
+            if($this.attr('title') == title) {
+              $this.find('a').focus();
               clearInterval(interval);
             }
           });
-        },500);
+        }, 500);
       });
     }
   };