如何在 typescript 的类型别名中嵌套类型别名数组？

Question

type subProp = {
  id: string,
  name: string
};

type ParentProps = {
  subscriptions?: [
    {
      id: string,
      items: [???Array Of subProp???]
    }
  ]
}

Is this case doable in typescript with only type alias? If so, how to do it? I can't find any viable option online. If no, what's the alternative?

Answer 1

You can declare items as an array of subProps and subscriptions as an array of a type with id and items :

type subProp = {
  id: string,
  name: string
};

type ParentProps = {
    subscriptions?: {
        id: string,
        items: subProp[];
    }[];  
}