1. 获取数组的后三位
var data=["a1","a2","a3","a4","a5","a6"]
//得出的结果就是["a4","a5","a6"]
var arr=
一、方法一
// 自定义方法变量,获取对象的value,keys
var values = function(object) {
var values = [];
for (var key in object)
values.push(object[key]);
return values;
}
var keys = function(ob