Time Travel refers to the ability to record a tab and later replay it ([WebReplay][wrr]). The technology is useful for local development, where you might want to:
- pause and step forwards or backwards
- pause and rewind to a prior state
- rewind to the time a console message was logged
- rewind to the time an element had a certain style or layout
- rewind to the time a network asset loaded
(by @andrestaltz)
If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.
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// http://paulirish.com/2011/requestanimationframe-for-smart-animating/ | |
// http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating | |
// requestAnimationFrame polyfill by Erik Möller. fixes from Paul Irish and Tino Zijdel | |
// MIT license | |
(function() { | |
var lastTime = 0; | |
var vendors = ['ms', 'moz', 'webkit', 'o']; |