Is it possible to programmatically catch all events on the page in the browser?

Question

First of all, here is a list of event types that are defined by the W3C standards. (This list is based on the onevent attributes defined in the HTML5 standard. I assume that

Answer 1

You can iterate through all properties of dom element and select ones that match /on(.*)/ pattern (for example onclick or onmousemove):

var events = [];
for (var property in element) {
    var match = property.match(/^on(.*)/)
    if (match) { 
        events.push(match[1]);
    }
}
console.log(events.join(' '))