Update Gruntfile.js fixing undefined jQuery check

The check to see if jQuery was defined as incorrect causing the "Bootstrap requires jQuery" message to only be displayed if jQuery is defined and has a value which equates to `false`.

diff --git a/Gruntfile.js b/Gruntfile.js
index b7b780f9eb3d634dd892131089b6c2deefc34010..f1ae2266f59b1f434a09af8eac086880f97b76ab 100644 (file)
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -15,7 +15,7 @@ module.exports = function(grunt) {
               '*\n' +
               '* Designed and built with all the love in the world by @mdo and @fat.\n' +
               '*/\n',
-    jqueryCheck: 'if (!jQuery) { throw new Error(\"Bootstrap requires jQuery\") }\n\n',
+    jqueryCheck: 'if (typeof jQuery === "undefined") { throw new Error(\"Bootstrap requires jQuery\") }\n\n',
 
     // Task configuration.
     clean: {