HTMLElement.onWindowMigrated method

HTMLElement › onWindowMigrated

Official

Adds an event listener to the element when it is migrated to another window.

Signature:

onWindowMigrated(this: HTMLElement, listener: (win: Window) => unknown): () => void

Parameters:

Parameter	Type	Description
this	HTMLElement
listener	(win: Window) => unknown	the callback to call when this node has been migrated to another window.

Returns: () => void — destroy - a function to remove the event handler to avoid memory leaks.

Example:

document.body.onWindowMigrated((win) => {
    console.log('window migrated');
});