how to nest an array of type alias in a type alias in typescript?

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?

eol · Accepted Answer · 2020-06-30 14:39:30Z

2

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[];
    }[];  
}

answered Jun 30, 2020 at 14:39

eol

24.7k6 gold badges53 silver badges72 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

ey dee ey em Over a year ago

what is this XXX[ ] syntax calls? I want to look into it and learn more! thanks

eol Over a year ago

It just means that it's an array of type XXX. Another way to do this is: items: Array<subProp>, see: typescriptlang.org/docs/handbook/basic-types.html#array and stackoverflow.com/questions/36842158/…

Collectives™ on Stack Overflow

how to nest an array of type alias in a type alias in typescript?

1 Answer 1

2 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related