7. HTML 发展历史 1998 2000 2002 2004 2007 HTML 4.0 XHTML1 XHTML2 WHATG HTML 5
8. 支持 HTML5 的浏览器 Opera 9.5+ Cross-document messaging Server-sent events Web Forms 2.0 Canvas and video Safari 3.1+ <video> and <audio> tags Offline data storage API Webkit(Iphone/Chrome/Android/ Nokia s60/Palm's WebOS)
9. 支持 HTML5 的浏览器 FireFox 3.1+ offline storage and canvas Geolocation/Web Workers/ ContentEditable Gecko(more HTML5 APIS) Internet Explorer 8.0+ embed element and contentEditable attribute cross-document messaging
21. Drag&Drop 拖拽事件 : dragstart, dragend, dragenter, dragleave, dragover, drag, drop <div draggable="true" ondragstart="dragstartHandler(event)"></div> function dragstartHandler(e){ alert('dragstart'); }
22. Web Workers 让 Javascript 多线程,可以在后台做很多工作而不会阻断当前的浏览器 var w = new Worker('worker.js'); w.onmessage = function(event){ alert(event.data); } w.postMessage('run');
23. Web Workers //worker.js importScripts('xhr.js', 'db.js'); onmessage = function(event){ if(event.data == 'run'){ run(); } } function run(){ var data = doCrazyNumberCrunch(); postMessage(data); }