哪些HTML5元素具有onload/“加载事件"? [英] Which HTML5 elements have onload/"load event"?
问题描述
Mozilla的MDN 通知加载具有此存根的事件:
当资源及其从属资源时，将触发load事件完成加载.
The load event is fired when a resource and its dependent resources have finished loading.
并链接到
标准1 ，它通知
受信任的目标:窗口，文档，元素
Trusted Targets: Window, Document, Element
因此，相关的 onload 处理程序和 load 事件似乎设计为可与Element一起使用.看来这样的元素是< img> ，指示该元素的加载.
It seems that the related onload handler, and the load event is hence designed to work with Element. It seems such an element is <img> to indicate the loading of this.
请注意，现在我在窗口/文档上的 load 事件还指示其所包含的元素的加载状态，但有些
Please note that I now that the load event on the window/document indicates also the load state of its contained Elements but some Element can
a)更改其 src / href 属性(< img> ，< script> ，< link> ，....)b)或其内联内容(< style> ，< script> )
a) change their src/href property (<img>, <script>, <link>,....)
b) or their inline content (<style>, <script>)
.
有了这个问题，我想知道哪些元素支持 load 事件 onload .Handler".
With this question I seek help knowing "which Elements support the load Event, onload.Handler.
我在Chromium和Firefox中对此进行了测试，并且似乎支持< style> ，< script>
I tested this in Chromium and Firefox and it seems it is supported in
<style>, <script>
var styleElement = document.createElement("style");
styleElement.onload = function() {
console.log("styleElement onload called");
};
document.head.appendChild(styleElement);
// output: "styleElement onload called";
但是我不确定所发现的行为是否确实在标准中指定的任何地方?
but I am unsure if the discovered behavior is actually anywhere specified in the stanards?
推荐答案
支持的HTML标记如下:< body>，< frame>，< iframe>，< img>，< input type ="image"> ;，< link>，< script>，< style>
Supported HTML tags are as follows : <body>, <frame>, <iframe>, <img>, <input type="image">, <link>, <script>, <style>
我在< h1>上进行了测试标签，但没有成功
I tested it on <h1> tag but it didn't work out
<h1 onload="myFunction()">Hello World!</h1>;
有关更多详细信息，请访问 W3学校
For more details, visit W3 schools
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