摘要：
今天看一些google的源码的时候发现很多基本的函数写的很舒服，摘录下来留作资料。1.Inject a js:Inject a js 1 /** 2 * Inject a script tag in to the body tag, setting it's src 3 * to the requested filename. 4 */ 5 var injectScript = function(filename, callback) { 6 var scr = document.createElement('script'); 7 scr.setAttribute(& 阅读全文