December 2013
Intermediate to advanced
752 pages
16h
Chinese
Content preview from MOBILE WEB程式設計--第二版
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第十二章
並且停止動畫：
cancelAnimationFrame(animationId);
在寫這本書時，Internet Explorer 10 是唯一不需要任何前置詞即可支援這項 API 的瀏
覽 器。Firefox 透過
moz
前置詞支援它，而 Safari 6.0 版以上、BlackBerry 10 版以上、
TouchPad 的 WebOS 瀏覽器，及 Android 的 Chrome 皆使用
Webkit
前置詞來支援它。
在 WebKit 瀏覽器上，
requestAnimationFrame()
可接受第二個選用的引數：在畫面上與
動畫連結的 DOM 元素。
如果我們想要封裝所有前置詞版本（而且已確定每一個都使用同一樣的語法），可使用
下列程式碼：
(function() {
var requestAnimationFrame = window.requestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.WebkitRequestAnimationFrame ||
window.msRequestAnimationFrame;
window.requestAnimationFrame = requestAnimationFrame;
})();
Paul Irish（
http://paulirish.com
）創建了一個優質的 polyfill，讓我們可以在每一個瀏覽
器上使用 Animation Timing ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.