Which event would you use to clean up the DOM or remove JavaScript listeners?

The event that should be used to clean up the DOM or remove JavaScript listeners is the Destroy event. This event is specifically designed for cleanup tasks that need to be executed when an application’s component is removed or destroyed. It’s the ideal point to dispose of any resources that were created during the component's lifecycle, including removing event listeners or freeing up memory that might have been allocated.

By performing these cleanup actions during the Destroy event, you help ensure that the application remains efficient and does not encounter memory leaks or retain unnecessary references to elements that are no longer in use. This practice is essential for maintaining performance and preventing potential issues in your application as users interact with it or navigate away from components.

The other events listed serve different purposes. The Ready event usually signals that the widget is fully initialized and ready for user interaction but is not meant for cleanup. The Render event occurs when the component is being prepared for display, allowing you to manipulate the DOM before it appears to the user, rather than cleaning up after it. The After Fetch event is relevant for handling data after a fetch operation, not for managing the lifecycle of DOM elements or listeners.