<!--info-header-start--><h1>Readonly 2 <img src="https://img.shields.io/badge/-m%C3%A9dio-d9901a" alt="médio"/> <img src="https://img.shields.io/badge/-%23readonly-999" alt="#readonly"/> <img src="https://img.shields.io/badge/-%23object--keys-999" alt="#object-keys"/></h1><blockquote><p>by Anthony Fu <a href="https://github.com/antfu" target="_blank">@antfu</a></p></blockquote><p><a href="https://tsch.js.org/8/play/pt-BR" target="_blank"><img src="https://img.shields.io/badge/-Fazer%20o%20Desafio-3178c6?logo=typescript&logoColor=white" alt="Fazer o Desafio"/></a> &nbsp;&nbsp;&nbsp;<a href="./README.md" target="_blank"><img src="https://img.shields.io/badge/-English-gray" alt="English"/></a>  <a href="./README.zh-CN.md" target="_blank"><img src="https://img.shields.io/badge/-%E7%AE%80%E4%BD%93%E4%B8%AD%E6%96%87-gray" alt="简体中文"/></a>  <a href="./README.ja.md" target="_blank"><img src="https://img.shields.io/badge/-%E6%97%A5%E6%9C%AC%E8%AA%9E-gray" alt="日本語"/></a>  <a href="./README.ko.md" target="_blank"><img src="https://img.shields.io/badge/-%ED%95%9C%EA%B5%AD%EC%96%B4-gray" alt="한국어"/></a> </p><!--info-header-end-->

> Traduzido pelo Google, abra um PR para ajudar a melhorar a tradução.

Implemente um `MyReadonly2<T, K>` genérico que recebe dois argumentos de tipo `T` e `K`.

`K` especifica o conjunto de propriedades de `T` que deve ser definido como Somente leitura. Quando `K` não é fornecido, ele deve tornar todas as propriedades somente leitura, assim como o `Readonly<T>` normal.

Por exemplo

```ts
interface Todo {
  title: string
  description: string
  completed: boolean
}

const todo: MyReadonly2<Todo, 'title' | 'description'> = {
  title: "Hey",
  description: "foobar",
  completed: false,
}

todo.title = "Hello" // Error: cannot reassign a readonly property
todo.description = "barFoo" // Error: cannot reassign a readonly property
todo.completed = true // OK
```

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