HTML DOM : How to get the whole list of registered event handlers? [duplicate]

This question already has answers here: How to find event listeners on a DOM node in JavaScript or in debugging? (20 answers) Closed 8 months ago.

For debugging purpose and memory leak, I'd like to have the full list of reg开发者_运维问答istered event handlers. There's this nice visual tool but a plain text list would be welcomed.

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As the mentioned link says, there is no JavaScript API to retrieve all registered listeners. So, for testing purposes you might try overriding the EventTarget.prototype.addEventListener/removeEventListener methods and storing their arguments in your own storage to inspect later.

On a similar note, you can use the Chrome Developer Tools to examine currently registered listeners for a particular node (or the node chain up to the document root) in the Elements panel ("Event Listeners" section in the sidebar.)