js 查看对象的属性特征

var user = {
    name:"angdh",
    age:11,

};

console.log(
    JSON.stringify(Object.getOwnPropertyDescriptors(user),null,2)
);

{
  "name": {
    "value": "angdh",
    "writable": true,
    "enumerable": true,
    "configurable": true
  },
  "age": {
    "value": 11,
    "writable": true,
    "enumerable": true,
    "configurable": true
  }
}