protect script when jQuery isn't present

rogerhu · Jun 11, 2010 · 9286660 · 9286660
1 parent b810de8
commit 9286660
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Showing 2 changed files with 5 additions and 1 deletion.
diff --git a/README → README.md b/README → README.md
diff --git a/tracekit.js b/tracekit.js
@@ -957,6 +957,10 @@ TraceKit.computeStackTrace = (function () {
  * asynchronous jQuery functions.
  */
 (function ($) {
+
+    // quit if jQuery isn't on the page
+    if (!$) return;
+
 	var _oldEventAdd = $.event.add;
 	$.event.add = function (elem, types, handler, data) {
 		var _handler;
@@ -1053,4 +1057,4 @@ TraceKit.computeStackTrace = (function () {
 			throw e;
 		}
 	};
-}(jQuery));
+}(window.jQuery));