extjs源码分析-009(Ext.urlAppend/toArray)

//在URL后面追加参数
urlAppend : function(url, s){//s 新追加的参数
            if(!Ext.isEmpty(s)){
                return url + (url.indexOf('?') === -1 ? '?' : '&') + s;
            }
            return url;
        },
//转化成数组
toArray : function(){
            return isIE ?
                function(a, i, j, res){
                    res = [];
                    Ext.each(a, function(v) {
                        res.push(v);
                    });
                    return res.slice(i || 0, j || res.length);
                } :
                function(a, i, j){
                    return Array.prototype.slice.call(a, i || 0, j || a.length);
                }
        }()