Hi all!
I have a question regarding event listener.
Precondition: my browser page contains an ExtJS widget containing some grids, form panels, buttons, stores, etc. There are a lot of event handlers registered listening for event fired by ExtJs components. And my ExtJS widget defines own events and there are components listening for these events as well.
Do I need to unregister event listener when the user leaves this browser page? Or does the browser purge the event listener when purging the DOM tree?
Thanks
Frank
PS: Of course whenever I remove a component from my ExtJS widget directly, I have to care about unregistering event handlers.
It should clean up after itself.
removing a Component destroys that Component by default (You can override that if you want) and destroy cleans up the Component. Ext is getting better at garbage collection with each release.
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Best practise on unregister event listener