192 I wanna write my own form validation javascript library and I've been looking on google how to detect if a submit button is clicked but all I found is code where you have to use onClick on …

Jan 15, 2009 · 1154 I have a page where some event listeners are attached to input boxes and select boxes. Is there a way to find out which event listeners are observing a particular DOM …

If event listener is no longer needed but we forget to remove it, the function will keep hanging around in memory. If the element to which the event was attached gets removed from the …

Oct 8, 2010 · Is there any cross-browser JavaScript/jQuery code to detect if the browser or a browser tab is being closed, but not due to a link being clicked?

Aug 9, 2016 · If you use element.addEventListener ('click', event => { } to add the event to the element, the javascript will check every click internally anyway. If you add the event to all …

How can I get an event (via window.addEventListener or something similar) when window.location.href changes on a page? I also need access to the DOM of the document …

Context: Attaching event listeners to elements dynamically created from an Ajax response. Making an selectable by click, or by keyboard navigation: In both cases, the same function is …

In this example, the DOMContentLoaded event is used to ensure that the JavaScript code inside the event listener is executed only after the HTML document has been completely loaded and …

Apr 18, 2013 · One more thing: How do I remove this event listener? I tried with document.removeEventListener(), but it doesn't work: the listener continues to be active, i.e. …

Mar 13, 2009 · How can I hook into a browser window resize event? There's a jQuery way of listening for resize events but I would prefer not to bring it into my project for just this one …