码迷,mamicode.com
首页 > 其他好文 > 详细

[TypeScript] as const, force immutability for Object type

时间:2020-02-26 01:28:44      阅读:64      评论:0      收藏:0      [点我收藏+]

标签:obj   java   javascrip   variable   for   color   var   com   less   

Unlike JavaScript‘s const variable declarations, TypeScript allows you to create fully immutable types. In this lesson, we learn how to create immutable types in TypeScript with the help of as const

 

const user = {
    name: ‘xxx‘,
    education: {
        degree: ‘MSc‘
    }
} as const
const users = [
    ‘a‘,
    ‘b‘
] as const
user.education.degree = "BSc"
users.push(‘c‘)

 

技术图片

[TypeScript] as const, force immutability for Object type

标签:obj   java   javascrip   variable   for   color   var   com   less   

原文地址:https://www.cnblogs.com/Answer1215/p/12364838.html

(0)
(0)
   
举报
评论 一句话评论(0
登录后才能评论!
© 2014 mamicode.com 版权所有  联系我们:gaon5@hotmail.com
迷上了代码!