L0v3ch4n

外观

ToPrimitive

约 146 字小于 1 分钟

2026-02-11

题目

// 将类型为字面类型（标签类型）的属性，转换为基本类型。

type PersonInfo = { name: 'Tom', age: 30, married: false, addr: { home: '123456', phone: '13111111111' } }

// 要求结果如下： type PersonInfo = { name: string, age: number, married: boolean, addr: { home: string, phone: string } }

解题思路

待补充

答案

type ToPrimitive = any

验证

import type { Equal, Expect } from '@type-challenges/utils'

type PersonInfo = {
  name: 'Tom'
  age: 30
  married: false
  addr: {
    home: '123456'
    phone: '13111111111'
  }
  hobbies: ['sing', 'dance']
  readonlyArr: readonly ['test']
  fn: () => any
}

type ExpectedResult = {
  name: string
  age: number
  married: boolean
  addr: {
    home: string
    phone: string
  }
  hobbies: [string, string]
  readonlyArr: readonly [string]
  fn: Function
}

type cases = [
  Expect<Equal<ToPrimitive<PersonInfo>, ExpectedResult>>,
]

参考

无