Tips for creating a typescript module definition that exports a module dependency as one of its members

Let's consider a particular situation: I am in the process of creating typescript definitions for two commonJS modules, A and B. Module B has a dependency on module A, and to make things easier, B directly exports A as a property B.A so that users do not have to explicitly call require('A') in their code.

The question at hand is how can I properly define the typescript definition for module B to export A as a property of B? Here is what I've tried:

Module A exports various members like this:

export const foo = 'bar';

Then, in module B, I attempted:

import * as A from 'A';
export A;

and

import * as a from 'A'; 
export var A : a;

However, neither approach resulted in valid typescript module definitions.

The desired outcome is to be able to write the following in the consuming typescript code:

import B = require('B');
console.log(B.A.foo);

What is the correct method to define module B's type definitions in order to export A as a property of B?

Answer №1

File A.ts

declare let variable = 1;

File B.d.ts

import * as A from "./A";

export {
    A
}

Example of usage

import B from "./B";

console.log(B.A.variable);

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