本文实例讲述了javascript带回调函数的异步脚本载入方法。分享给大家供大家参考。具体实现方法如下：
required = scripts.length;
this.callback = callback;
for (var i = 0; i < scripts.length; i++) {
this.writeScript(scripts[i]);
}
},loaded: function (evt) {
this.loadCount++;
if (this.loadCount == this.totalrequired && typeof this.callback == 'function') this.callback.call();
},writeScript: function (src) {
var self = this;
var s = document.createElement('script');
s.type = "text/javascript";
s.async = true;
s.src = src;
s.addEventListener('load',function (e) { self.loaded(e); },false);
var head = document.getElementsByTagName('head')[0];
head.appendChild(s);
}
}
用法演示
希望本文所述对大家的javascript程序设计有所帮助。
原文链接：https://www.f2er.com/js/53548.html