Vanilla JS: Totally disabling a “save” functionality in webpages

Question

Assume I\'m a junior Wikipedia user that just want to experiment with changing some wikipedian content with the Wiki text editor in an edit-page, but not saving my changes in an

Answer 1

The keyCodes all represent modifier keys. The keypress event does not fire with these keys:

    document.addEventListener('keypress', function(e) {
    console.log('keypress worked');
    });

    document.addEventListener('keyup', function(e) {
    console.log('keyup worked');
    });

Also, please note that .keyCode is deprecated. Should use .key