Use keyCode const to check if forward slash was pressed

Author: vovayatsyuk

app/code/Magento/Ui/view/base/web/js/lib/key-codes.js

@@ -21,6 +21,7 @@ define([], function () {
         17: 'ctrlKey',
         18: 'altKey',
         16: 'shiftKey',
+        191: 'forwardSlashKey',
         66: 'bKey',
         73: 'iKey',
         85: 'uKey'

app/design/adminhtml/Magento/backend/web/js/theme.js

@@ -312,8 +312,9 @@ define('globalNavigation', [
 
 define('globalSearch', [
     'jquery',
+    'Magento_Ui/js/lib/key-codes',
     'jquery/ui'
-], function ($) {
+], function ($, keyCodes) {
     'use strict';
 
     $.widget('mage.globalSearch', {
@@ -353,7 +354,7 @@ define('globalSearch', [
                     'textarea'
                 ];
 
-                if (e.which !== 191 || // forward slash - '/'
+                if (keyCodes[e.which] !== 'forwardSlashKey' ||
                     inputs.indexOf(e.target.tagName.toLowerCase()) !== -1 ||
                     e.target.isContentEditable
                 ) {