This event doesn’t wait for the completion of the loading of add-ons such as stylesheets, sub-frames and images/pictures. button.addEventListener('click', (e)=>{ console.log(e.target.id) }) Here the event parameter is a variable named e but it can be easily called anything else such as "event". the issue with this bug is that document.body.addEventListener does not work while document.addEventListener will work. Why does document.addEventListener('load', handler) not work? Also, this stack overflow answer was useful up to a point but given my understanding of the MSN docs linked above I'm still confused. When the user clicks anywhere in the document, output "Hello World" in a

element with id="demo": document.addEventListener("click", function() {. Powered by Discourse, best viewed with JavaScript enabled. Code included inside $( document ).ready() will only run once the page Document Object Model (DOM) is ready for JavaScript code to execute. There are better ways in Angular, see yourself. There are better ways in Angular, see yourself. © 2005-2020 Mozilla and individual contributors. 'addEventListener' : 'attachEvent']( window.addEventListener ? If you'd like to contribute to the data, please check out, https://hacks.mozilla.org/2020/10/mdn-web-docs-evolves-lowdown-on-the-upcoming-new-platform/, https://github.com/mdn/browser-compat-data, Yes (although specified as a simple event that isn't cancelable). A description of the DOMContentLoaded event and why it may be preferable to use over the window.onload event. Tip: Use the document.addEventListener() method to attach an event handler to the document. Code included inside $( window ).on( "load", function() { ... }) will run once the entire page (images or iframes), not just the DOM, is ready. Synchronous JavaScript pauses parsing of the DOM. The deviceready event fires once Cordova has fully loaded. inDiv.addEventListener("click", function { info.innerHTML += "inDiv" + "
"; }, false); 上述是我们测试的代码，根据 info 的显示来确定触发的顺序，有三个 addEventListener，而 useCapture 可选值为 true 和 false，所以 2*2*2，可以得出 8 段不同的程序。 addEventListener ('load', function MDN will be in maintenance mode, Monday December 14, from 7:00 AM until no later than 5:00 PM Pacific Time (in UTC, Monday December 14, 3:00 PM until Tuesday December 15, 1:00 AM). https://html.spec.whatwg.org/multipage/indices.html#events-2. jQuery.ready / DOMContentLoaded occurs when all of the HTML is ready to interact with, but often before its been rendered to the screen. こんにちは、ライターのマサトです！ 今回は、JavaScriptでさまざまなイベント処理を実行することが可能な「addEventListener()」について学習していきましょう！ この記事では、 「addEventListener()」とは？ 「addEventListener()」の使い方 主要なイベントリスナー load event listeners (including onload event handler) of window. DOMContentLoaded event gets executed once the basic HTML document is loaded and its parsing has taken place. The onload event can be used to check the visitor's browser type and browser version, and load the proper version of the web page based on the information. DOMContentLoaded event gets executed once the basic HTML document is loaded and its parsing has taken place. inDiv.addEventListener("click", function { info.innerHTML += "inDiv" + "
"; }, false); 上述是我们测试的代码，根据 info 的显示来确定触发的顺序，有三个 addEventListener，而 useCapture 可选值为 true 和 false，所以 2*2*2，可以得出 8 段不同的程序。 A page can't be manipulated safely until the document is "ready." window.addEventListener('load', handler) The MDN documentation for the “load” event says. load event listeners (including onload event handler) of window; A bubble load event listener (including onload event handler) in document should never be invoked. View relogio.txt from AA 1/window.addEventListener("load", relogio); /* const psec = document.querySelector("#psec"), pmin = document.querySelector("#pmin"), phoras = The spec states that it is fired at window and at certain (special) elements like : Fired at the Window when the document has finished loading; fired at an element containing a resource (e.g. jQuery detects this state of readiness for you. HTML DOM events allow JavaScript to register different event handlers on elements in an HTML document. var iframe = document.createElement('iframe'); iframe.addEventListener('load', function() { console.log('loaded! to finish loading. Document Object. Code included inside $( document ).ready() will only run once the page Document Object Model (DOM) is ready for JavaScript code to execute. bug 99820 is about setting onload and onunload handlers using DOM Events syntax which is not the problem in this bug since he is setting the event handlers in the attribute defined onload handler init(). Tip: Use the document.addEventListener() method to attach an event handler to the document. Do the docs need to be updated? document.getElementById("demo").innerHTML = "Hello World"; … const log = document.querySelector('.event-log-contents'); const reload = document.querySelector('#reload'); reload.addEventListener('click', => { log.textContent =''; window.setTimeout(() => { window.location.reload(true); }, 200); }); window.addEventListener('load', (event) => { log.textContent = log.textContent + 'load\n'; }); … in Chrome 46 and Firefox 42, and it’s not working. Content is available under these licenses. I'm looking for an explanation as to why window.addEventListener works on the following script but not document.addEventListener.I've had a look at the MSN docs for the load event and from what I can gather it should work. If loaded as usual, stylesheets slow down DOM parsing as they're loaded in parallel, "stealing" traffic from the main HTML document. target.addEventListener(event, function, useCapture) target: the HTML element you wish to add your event handler to. ; Use setTimeout to allow the page to be rendered before your … Only capture load listeners might be invoked, but due to the load of a sub-resource like a stylesheet, not due to the load of the document … After editing a form in InfoPath for use on a SharePoint 2010 site, my page will no longer load on IE11. Therefore, you should have written: This new event is triggered before the load event so you don't have to wait for the entire page to load. "load" : "onload", init, false); Note: here I get a straight reference to the body element via the document, saving the need for the first line. ; The load event occurs when all of the HTML is loaded, and any subresources like images are loaded. Checking whether loading is already complete The deviceready … Examples Basic usage window.addEventListener('DOMContentLoaded', (event) => { console.log('DOM fully loaded and parsed'); }); Specifications