Jquery plugin seems to leak memory no matter what I do
- by ddombrow
I've recently been tasked with ferreting out some memory leaks in an application for my work. I've narrowed down one of the big leaks to a jquery plugin. It appears we're using a modified version of a popular context menu jquery plugin.
It looks like one of the developers before me attempted to add a destroy method. I noticed it wasn't very well written and attempted to rewrite. Here's the meat of my destroy method:
if (menu.childMenus)
{
for (var i = 0; i < menu.childMenus.length; i++)
{
$(menu.childMenus[i]).destroy(menu.childMenus[i], 'contextmenu');
}
}
var recursiveUnbind = function(node) {
$(node).unbind();
//$(node).empty().remove();
$.each(node, function(obj) {
recursiveUnbind(obj);
});
};
$.each(menu, function()
{
recursiveUnbind(menu);
});
$(menu).empty().remove();
In my mind this code should blow away all the jquery event binding and remove the dom elements, yet still the plugin leaks gobs of memory in IE7.
The modified plugin with a test page can be found here:
http://www.olduglyhead.com/jquery/leaks/
Clicking the button repeatedly will cause IE7 to leak a bunch of memory.
