异步动态加载JS并运行(示例代码)

Javascript教程 2025-08-05

如下所示:

复制代码代码如下:

(function(){

var ga=document.createElement('script');ga.type?=?'text/javascript';?ga.async?=?true;

ga.src?=?('https:'?==?document.location.protocol???'https://**ssl*'?:?'http://www')?+?'.google-analytics.com/ga.js';

var?s?=?document.getElementsByTagName('script')[0];?

s.parentNode.insertBefore(ga,?s);

})();