Implement the generic Mutable<T> which makes all properties in T mutable (not readonly).
For example
interface Todo {
readonly title: string
readonly description: string
readonly completed: boolean
}
type MutableTodo = Mutable<Todo> // { title: string; description: string; completed: boolean; }
/* _____________ Your Code Here _____________ */
type Mutable<T extends object> = {
-readonly [K in keyof T]: T[K]
}
/* _____________ Test Cases _____________ */
import type { Equal, Expect } from '@type-challenges/utils'
interface Todo1 {
title: string
description: string
completed: boolean
meta: {
author: string
}
}
type List = [1, 2, 3]
type cases = [
Expect<Equal<Mutable<Readonly<Todo1>>, Todo1>>,
Expect<Equal<Mutable<Readonly<List>>, List>>,
]
type errors = [
// @ts-expect-error
Mutable<'string'>,
// @ts-expect-error
Mutable<0>,
]标签：Typescript,string,_____________,51,readonly,boolean,Mutable,type From： https://www.cnblogs.com/Answer1215/p/16794992.html