Wondering about detecting when an HTML dialog is closed using the ESC key. Specifically referring to the HTML dialog, not jQuery.
Wondering about detecting when an HTML dialog is closed using the ESC key. Specifically referring to the HTML dialog, not jQuery.
Discover the close event within the HTML dialog element, providing a valuable listening opportunity.
Additional details available at: https://developer.mozilla.org/en-US/docs/Web/API/HTMLDialogElement/close_event
If you want to detect when the open attribute of a dialog changes, you can use MutationObserver. This code snippet is inspired by Mats' response on Stack Overflow regarding firing events on DOM attribute changes.
window.MutationObserver = window.MutationObserver || window.WebKitMutationObserver || window.MozMutationObserver;
var dialog = document.querySelector('dialog');
var btn = document.querySelector('#open-dialog');
var observer = new MutationObserver(onDialogMutation);
btn.addEventListener('click', function() {
dialog.showModal();
observer.observe(dialog, { attributes: true });
});
function onDialogMutation(mutation) {
observer.disconnect();
console.log('Dialog Closed');
}<!doctype html>
<html lang="en">
<head>
<title>Dialog MutationObserver</title>
</head>
<body>
<dialog>My Dialog</dialog>
<input id="open-dialog" type="button" value="open dialog" />
</body>
</html>Identifying important occurrences in JavaScript is a crucial skill. Here's how you can achieve it:
$(document).keyup(function(e) {
if (e.keyCode === 27) { // perform specified action };
});
The keyCode 27 corresponds to the escape key.
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