CODEWITHSUNDEEP
typescript
salezica
salezica

Reputation: 77089

Typescript: importing internal namespace

I'm using a JS module, with typings from Definitely Typed, that has this structure:

declare namespace Foo {
  interface Bar {}
}

declare module "abc" {
    function f(): Foo.Bar

    namespace f {
    }

    export = f;
}

How can I import the Bar interface from "abc"?

Upvotes: 1

Views: 287

Answers (1)

kingdaro
kingdaro

Reputation: 12018

When something isn't explicitly exported, chances are, the author of the typings intends for you to not use the type.

...That being said, there technically is a way to get to it. TypeScript added a ReturnType type in 2.9 along with conditional types, which allows you to get the return type of a function. Here, you'd use it like this:

import f from 'abc'

type Bar = ReturnType<typeof f>

Playground

Upvotes: 1

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