当前位置:网站首页>Object.getOwnPropertyNames() VS Object.keys()
Object.getOwnPropertyNames() VS Object.keys()
2022-07-26 20:31:00 【紫微前端】
差异
Object.getOwnPropertyNames(obj)返回对象的所有属性obj。Object.keys(obj)返回所有 可枚举的属性。除非您设置enumerable: false为任何属性,否则它们会提供相同的结果。在以下示例中,该screen对象具有两个属性,branch并且size.
const screen = {
branch: 'Dell',
size: '27inch',
};
Object.getOwnPropertyNames(screen); // ['branch', 'size']
Object.keys(screen); // ['branch', 'size']让我们再定义一个名为的属性resolution,但它被设置为enumerable: false:
Object.defineProperties(screen, {
resolution: {
enumerable: false,
v边栏推荐
- 自定义注解(一)
- Leetcode array class
- 【打新必读】工大科雅估值分析,供热节能产品
- ECCV 2022 | complete four tracking tasks at the same time! Unicorn: towards the unification of target tracking
- LiveDatade的基本使用
- QT Foundation Day 1 (1) QT, GUI (graphical user interface) development
- 修改excel默认编码
- idea中debug时如何进入指定的用户方法体中?
- 4年软件测试工作经验,跳槽之后面试20余家公司的总结
- 微服务化解决文库下载业务问题实践
猜你喜欢

Set the template of core configuration file in idea

测试用例千万不能随便,记录由一个测试用例异常引起的思考

2022 open atom global open source summit agenda express | list of sub forum agenda on July 27

About: get the domain controller of the current client login

Flutter Performance Optimization Practice - UI chapter

Pointpillars: fast encoders for object detection from point clouds reading notes

【HCIE安全】双机热备-主备备份
![[hcie security] dual computer hot standby - primary and standby backup](/img/3b/392aabd9915a3f0997cf7a72240d63.png)
[hcie security] dual computer hot standby - primary and standby backup

Summary of common interview questions of computer composition principle, including answers

idea中检索此方法中有哪些参数以便我们使用——1.类图。2.双击shift
随机推荐
Practice of microservice in solving Library Download business problems
【MySQL系列】-索引知多少
一些意想不到的bug记录
Ros2 node communication realizes zero copy
JVM学习----内存结构----程序计数器&虚拟机栈&本地方法栈&堆&方法区
Deployment of kubernetes
串口通信失败
2022-7-26 第七组 抽象和接口
6种方法帮你搞定SimpleDateFormat类不是线程安全的问题
QT Foundation Day 1 (1) QT, GUI (graphical user interface) development
How to implement Devops with automation tools | including low code and Devops application practice
有关无线通信的相关内容
Svn uses fragmented ideas
Computer professional interview topic summary, general navigation
功能尝鲜 | 解密 Doris 复杂数据类型 ARRAY
ECCV 2022 | complete four tracking tasks at the same time! Unicorn: towards the unification of target tracking
SPI configuration
SPI配置
我们从Crypto市场中学到的最艰难一课
Sign up now: July 29 recommendation system summit 2022