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type MyReadonly<T> = {
  readonly [P in keyof T]: T[P]
}
提出日時2025-09-14 07:42:39
問題Readonly
ユーザーbalckowl
ステータスAccepted
テストケース
import type { Equal, Expect } from '@type-challenges/utils'

type cases = [
  Expect<Equal<MyReadonly<Todo1>, Readonly<Todo1>>>,
]

interface Todo1 {
  title: string
  description: string
  completed: boolean
  meta: {
    author: string
  }
}