let name = decodeURI($("#audio1").prop("src").replace("http://localhost:8443/Blog/src/audio/", "").replace(".mp3", "")); $("input[id*=ml]").each(function () { let val = $(this).val(); let now = null; // console.
and let me associate a caption with that figure, respectively.Here’s what that webpage would look like when combined with some CSS. (NOTE: I borrowed this CSS from my talented teammate Brandon Satrom’s TechEd talk, but the less-than-beautiful end effect was all me.)...
files[0]; // 获取文件后缀 let ext = file.name.substring(file.name.lastIndexOf('.')); // 不是图片 if (img_exts.indexOf(ext) == -1) { alert("请上传图片,这个文件格式不支持哦~"); return } // 实例化文件读取器 let reader = new FileReader(); // base64的方式读取文件 reader....
7.1 DOMTokenList 这里主要介绍了 DOMTokenList一个接口,表示一组用空格分隔的标记,比如Element.classList, HTMLLinkElement.relList, HTMLAnchorElement.relList, HTMLAreaElement.relList, HTMLIframeElement.sandbox, or HTMLOutputElement.htmlFor的返回值,可以像数组一样从下标0开始处理,对大小写敏感 7.1.1 属性 DO...
fileBtn.onchange=function(){letfile =this.files[0];// 判断后缀是否合法letextension = file.name.substring(file.name.lastIndexOf('.'));letimages = [".jpg",".jpeg",".png",".gif",".ico"];letflag =false;for(leti=0;i<images.length;i++){if(images[i] === extension){ ...
measureText - measures the current width of the specified text. As you can imagine there are more methods attached to the canvas 2D API. Check outthispage for all the methods that I haven't covered in this section. The canvas is pretty dull if you don’t draw on it, so let’s take...
getContext('2d'); let gameLoop; function gameLoop() { // 清除画布 ctx.clearRect(0, 0, canvas.width, canvas.height); // 绘制背景色 ctx.fillStyle = '#f0f0f0'; ctx.fillRect(0, 0, canvas.width, canvas.height); // 更新游戏状态 update(); // 重绘游戏元素 render(); // 请求下一帧...
Note: The data-plyr-embed-id can either be the video ID or URL for the media.VimeoMuch the same as YouTube above.<div class="plyr__video-embed" id="player"> <iframe src="https://player.vimeo.com/video/76979871?loop=false&byline=false&portrait=false&title=false&...
With a few simple options, you can autoplay, loop, and add playback controls to the embedded video. First, let’s talk about video format support, which is a very complicated issue. Some video formats are free, and others are licensed. Some formats look better than others, some make ...
Let’s take a quick look at the code necessary to create our game timer. Game Timer Loop Games on HTML5 Canvas require the use of the repeated update/render loop to simulate animation. We do this by using the setInterval() JavaScript function, which will repeatedly call a function of ...