HTML5——Web Workers

http://www.tfan.org/wp-content/slides/workers.html#1

Web Workers——Javascript Concurrency

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当在HTML页面中执行脚本时，页面会变得没有响应直到脚本执行完成。

什么是Web Worker?

web worker是在后台运行的javascript,独立于其他脚本，不会影响页面的性能。你可以继续执行你想做的任何事情：点击、选取等等，同时web worker就在后台运行。