A.ts and B.ts use the same internal modules.

B.ts depends on A.ts.

To reference a member of A, the module name is not required.

Run the following command to generate the output file:

• tsc --out out/app.js A.ts B.ts run.ts

The order between A and B still matters for the same reasons as the previous sample, despite being in the same module.

To test it, run:

• node out/app.js --> B { a: A {} }