htmx:before:cleanup

The htmx:before:cleanup event fires before htmx removes listeners and internal data from an element.

When It Fires

• Before an element is removed from the DOM during a swap
• Before htmx re-processes an element

Event Detail

Empty - no additional context provided.

Example

htmx.on('htmx:before:cleanup', (evt) => {
  console.log('Cleaning up:', evt.target);
  // Save state or clean up custom data
});

Use this to perform cleanup operations before htmx removes its data.