Re-bind onclick, on* event listeners for debugging

Question

I want to monkeypatch event listener registrations.

I found this answer showing how to do it for addEventListener:

const native         


        

Answer 1

You can get the original setter function with:

const originalSetter = Object.getOwnPropertyDescriptor(HTMLElement.prototype, 'onchange').set;

If you want to redefine a property, you should look at using Object.defineProperty().