Does anyone know how to get the below to report a javascript error? (any browser)
<head>
<title></title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/yui/2.6.0/build/yahoo-dom-event/yahoo-dom-event.js">
</script>
<script type="text/javascript">
ObjWithEvent = {
testEvent: new YAHOO.util.CustomEvent("testEvent")
};
ObjSubscriber = {
handleTestEvent: function(){
alert('the next line will not show up in the error console');
not_a_valid_function_bro();
}
};
ObjWithEvent.testEvent.subscribe(ObjSubscriber.handleTestEvent);
ObjWithEvent.testEvent.fire();
</script>
</head>
<body>
</body>
Possibly one of the worst chosen default settings ever..... YAHOO.util.Event.throwErrors is set to false by default, so if you want to see errors:
YAHOO.util.Event.throwErrors = true;
来源：https://stackoverflow.com/questions/521521/yui-customevent-no-errors-being-reported