摘要：
https://developers.google.com/speed/PageSpeed RulesOptimizing caching— keeping your application's data and logicoffthe network altogetherMinimizing round-trip times— reducing the number of serial request-response cyclesMinimizing request overhead— reducing upload sizeMinimizing payload size— red 阅读全文
摘要：
http://sporto.github.io/blog/2012/12/09/callbacks-listeners-promises/http://www.cnblogs.com/liuning8023/p/3220492.htmlhttp://www.ruanyifeng.com/blog/2011/08/a_detailed_explanation_of_jquery_deferred_object.htmlhttp://blog.allenm.me/2012/01/jquery_deferred_promise_method/http://blog.csdn.net/yanyan19 阅读全文