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");...
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 ...
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...
var canvas = document.querySelector("#unity-canvas"); var loadingBar = document.querySelector("#unity-loading-bar"); var progressBarFull = document.querySelector("#unity-progress-bar-full"); var fullscreenButton = document.querySelector("#unity-fullscreen-button"); var warningBanner = docum...
Set the background color of the first element with class="example" inside of a <div> element:// Get the element with id="myDIV" (a div), then get all elements inside div with class="example"var x = document.getElementById("myDIV").querySelectorAll(".example"); // Set the ...
constrenderSearchBox=(renderOptions,isFirstRender)=>{const{query,refine}=renderOptions;constcontainer=document.querySelector('#searchbox');if(isFirstRender){constinput=document.createElement('input');input.addEventListener('input',event=>{refine(event.target.value);});container.appendChild(input);}contain...
</button> </div> } }) This Comments Component can now be rendered either inside another React Component or directly in the call to ReactDOM.render():ReactDOM.render(<Comments />, document.querySelector('.app')) ES5 Components have some particular qualities, which we’ll note:...
Add querySelector() benchmark test 2个月前 lib Use the HTML Standard UA stylesheet 21天前 scripts Implement DeviceMotionEvent 22天前 test Test updates for Node.js v18 removal and v24 support 4天前 .editorconfig Add JSCS and fix everything it finds ...
constdom=newJSDOM(`<!DOCTYPE html><p>Hello world</p>`);console.log(dom.window.document.querySelector("p").textContent);// "Hello world" (Note that jsdom will parse the HTML you pass it just like a browser does, including implied<html>,<head>, and<body>tags.) ...
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) ...