Type Challenges Judge

Problems

Progress

Trunc

提出詳細

type Trunc<T extends string | number> =
  `${T}` extends `${infer L}.${number}`
    ? L extends `${number}`
      ? L
    : "0"
  : `${T}`
提出日時2023-08-31 18:13:46
問題Trunc
ユーザーookkoouu
ステータスAccepted
テストケース
import type { Equal, Expect } from '@type-challenges/utils'

type cases = [
  Expect<Equal<Trunc<0.1>, '0'>>,
  Expect<Equal<Trunc<1.234>, '1'>>,
  Expect<Equal<Trunc<12.345>, '12'>>,
  Expect<Equal<Trunc<-5.1>, '-5'>>,
  Expect<Equal<Trunc<'1.234'>, '1'>>,
  Expect<Equal<Trunc<'-10.234'>, '-10'>>,
  Expect<Equal<Trunc<10>, '10'>>,
]