Type Challenges Judge

Problems

Progress

Ranking

CamelCase

提出詳細

type CamelCase<S extends string> =
  Lowercase<S> extends `${infer L}_${infer R}`
    ?  R extends `${infer RL}${infer RR}`
      ? `${L}${Uppercase<RL>}${CamelCase<RR>}`
    : L
  : Lowercase<S>
提出日時2023-08-09 08:57:02
問題CamelCase
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<CamelCase<'foobar'>, 'foobar'>>,
  Expect<Equal<CamelCase<'FOOBAR'>, 'foobar'>>,
  Expect<Equal<CamelCase<'foo_bar'>, 'fooBar'>>,
  Expect<Equal<CamelCase<'foo_bar_hello_world'>, 'fooBarHelloWorld'>>,
  Expect<Equal<CamelCase<'HELLO_WORLD_WITH_TYPES'>, 'helloWorldWithTypes'>>,
  Expect<Equal<CamelCase<'-'>, '-'>>,
  Expect<Equal<CamelCase<''>, ''>>,
  Expect<Equal<CamelCase<'😎'>, '😎'>>,
]