querySelector("strong").textContent === "Hi!"; // etc. Here frag is a DocumentFragment instance, whose contents are created by parsing the provided string. The parsing is done using a <template> element, so you can include any element there (including ones with weird parsing rules like ...
getElementById("jspaint-iframe"); // contentDocument here refers to the webpage loaded in the iframe, not the image document loaded in jspaint. // We're just reaching inside the iframe to get the canvas. var canvas = iframe.contentDocument.querySelector(".main-canvas");...
type: string|HTMLElement Required The CSS Selector orHTMLElementto insert the widget into. stringHTMLElement Copy 1 2 3 searchBox({container:'#searchbox',}); placeholder# type: string Optional The placeholder text of the input. Copy 1 2 3 4 ...
1varnav = document.querySelector('.nav');//<nav>2vartoggleNav =function() {3console.log(this);//<nav> element4setTimeout(function() {5console.log(this);//[object Window]6}, 1000);7};8nav.addEventListener('click', toggleNav,false); 那这里究竟发生了什么?我们新创建了一个不会从事件...
closest(selector, [context]) ⇒ collection closest(collection) ⇒ collection v1.0+ closest(element) ⇒ collection v1.0+ 从元素本身开始,逐级向上级元素匹配,并返回最先匹配selector的元素。如果给定context节点参数,那么只匹配该节点的后代元素。这个方法与 parents(selector)有点相像,但它只返回最先匹配...
If a function is given, return only elements for which the function returns a truthy value. Inside the function, the this keyword refers to the current element. For the opposite, see not.find find(selector) ⇒ collection find(collection) ⇒ collection v1.0+ find(element) ⇒ collection...
使用JS 如果想要将 Templates 中的节点内容加载到当前页面显示出来,我们可以使用一下 JS 代码实现: // 获取 template 元素 const templateEle = document.querySelector...可以当做正常的 document 来使用 const node = content.querySelector("div"); // 导入 node 到 当前文档 // 必须要有这一步 const clon...
var fullscreenButton = document.querySelector("#unity-fullscreen-button"); var warningBanner = document.querySelector("#unity-warning"); // Shows a temporary message banner/ribbon for a few seconds, or // a permanent error message on top of the canvas if type=='error'. ...
benchmark Add querySelector() benchmark test 1个月前 lib Use the HTML Standard UA stylesheet 7天前 scripts Implement DeviceMotionEvent 8天前 test Add failing tests for cssstyle issues 2天前 .editorconfig Add JSCS and fix everything it finds ...
You can run highlighting inside a web worker to avoid freezing the browser window while dealing with very big chunks of code. In your main script: addEventListener('load', () => {constcode =document.querySelector('#code');constworker =newWorker('worker.js'); worker.onmessage =(event) ...