yui/leak.html



<!DOCTYPE html>

<html>
<head>
<script type="text/javascript" charset="utf-8" src="../../build/yui/yui-min.js">
</script>
</head>

<body>

<script>
YUI().use('base', 'node', function(Y){
// This leaks:
// var node = Y.Node.create('<div></div>');
// node.on('click', function(){});
// Y.one('body').append(node);


// This also leaks:
var el = document.createElement('div');
Y.Event._attach(['click', function(){}, el], {facade: false});
// Y.on('click', function(){}, el);
// document.body.appendChild(el);

// Y.Node._instances = null;

Y.each(Y.Node._instances, function(node) {
    node.destroy();
})

// This doesn't leak
/*
var div = document.createElement('div');
document.body.appendChild(div);
Y.on('click', function(){}, div);
*/
});
</script>

</body>
</html>