一个用于按顺序加载外部js的脚本的库
此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.greasyfork.org/scripts/10108/54092/LoadScript.js
// ==UserScript==
// @name LoadScript
// @namespace brambles
// @version 1.2
// @grant none
// ==/UserScript==
var LoadScript = function LoadScript(urls, callback) {
var _loadScript = arguments.callee;
var head = document.head;
var script = document.createElement('script');
script.type = 'text/javascript';
script.async = 'true';
script.className = 'loadscript';
script.setAttribute('charset', 'utf-8');
if (typeof urls === 'string') {
var urls = [
urls
];
}
if (!Array.isArray(urls)) {
throw 'type error';
}
if (urls.length > 1) {
script.onload = script.onerror = function () {
script.onload = script.onerror = null;
_loadScript(urls.slice(1), callback);
};
}
else {
script.onload = script.onerror = function(){
script.onload = script.onerror = null;
callback();
};
}
script.src = urls[0];
head.insertBefore(script, head.firstChild);
};