/**
 * 解决对于jQuery的加载问题.
 * 垫如相关的插件,并且让其他对jQuery有依赖的组件用这个已经完成插件组装的jQuery版本.
 * Object.keys 处理
 */
var $ = window.$;
define(function () {
    var DONT_ENUM = "propertyIsEnumerable,isPrototypeOf,hasOwnProperty,toLocaleString,toString,valueOf,constructor".split(","),
        hasOwn = ({}).hasOwnProperty;
    for (var i in { toString: 1 }) {
        DONT_ENUM = false;
    }


    Object.keys = Object.keys || function (obj) {
        var result = [];
        for (var key in obj) if (hasOwn.call(obj, key)) {
            result.push(key);
        }
        if (DONT_ENUM && obj) {
            for (var i = 0; key = DONT_ENUM[i++];) {
                if (hasOwn.call(obj, key)) {
                    result.push(key);
                }
            }
        }
        return result;
    };

    if (!String.prototype.trim) {
        String.prototype.trim = function () {

            return this.replace(/^\s*|\s*$/g, "");
        }
    }

    if (!Array.prototype.indexOf) {
        Array.prototype.indexOf = function (elt /*, from*/) {
            var len = this.length >>> 0;
            var from = Number(arguments[1]) || 0;
            from = (from < 0)
                ? Math.ceil(from)
                : Math.floor(from);
            if (from < 0)
                from += len;
            for (; from < len; from++) {
                if (from in this &&
                    this[from] === elt)
                    return from;
            }
            return -1;
        };
    }
    return $;
})