diff --git a/core/modules/block/js/block.js b/core/modules/block/js/block.js
index b96aa5e..5d239c0 100644
--- a/core/modules/block/js/block.js
+++ b/core/modules/block/js/block.js
@@ -24,10 +24,10 @@
       /**
        * Create a summary for checkboxes in the provided context.
        *
-       * @param {HTMLElement} context
+       * @param {HTMLDocument|HTMLElement} context
        *   A context where one would find checkboxes to summarize.
        *
-       * @returns {string}
+       * @return {string}
        *   A string with the summary.
        */
       function checkboxesSummary(context) {
@@ -131,7 +131,7 @@
       });
 
       /**
-       * Function to check empty regions and toggle classes based on this.
+       * Checks empty regions and toggles classes based on this.
        *
        * @param {jQuery} table
        *   The jQuery object representing the table to inspect.
@@ -141,9 +141,11 @@
       var checkEmptyRegions = function (table, rowObject) {
         table.find('tr.region-message').each(function () {
           var $this = $(this);
-          // If the dragged row is in this region, but above the message row, swap it down one space.
+          // If the dragged row is in this region, but above the message row,
+          // swap it down one space.
           if ($this.prev('tr').get(0) === rowObject.element) {
-            // Prevent a recursion problem when using the keyboard to move rows up.
+            // Prevent a recursion problem when using the keyboard to move rows
+            // up.
             if ((rowObject.method !== 'keyboard' || rowObject.direction === 'down')) {
               rowObject.swap('after', this);
             }