Absolute

约 140 字小于 1 分钟

2026-02-11

题目

实现一个接收string,number或bigInt类型参数的Absolute类型,返回一个正数字符串。

例如

type Test = -100;
type Result = Absolute<Test>; // expected to be "100"

解题思路

待补充

答案

type Absolute<T extends number | string | bigint> = any

验证

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

type cases = [
  Expect<Equal<Absolute<0>, '0'>>,
  Expect<Equal<Absolute<-0>, '0'>>,
  Expect<Equal<Absolute<10>, '10'>>,
  Expect<Equal<Absolute<-5>, '5'>>,
  Expect<Equal<Absolute<'0'>, '0'>>,
  Expect<Equal<Absolute<'-0'>, '0'>>,
  Expect<Equal<Absolute<'10'>, '10'>>,
  Expect<Equal<Absolute<'-5'>, '5'>>,
  Expect<Equal<Absolute<-1_000_000n>, '1000000'>>,
  Expect<Equal<Absolute<9_999n>, '9999'>>,
]

参考

无