Typescript modules export/import confusion

Question

Let's say I have those three files:

moduleA.ts:

export const foo = 42;

moduleB.ts:

module TestModules {
  export const bar = 43;
}

moduleC.ts:

import './moduleA';

module TestModules {
  console.log(TestModules.bar);
}

When I try to compile, I get a moduleC.ts(4,29): error TS2339: Property 'bar' does not exist on type 'typeof TestModules'. error.

Why?

I know mixing namespaces and modules ain't great but what if I have an old-style TypeScript project of a considerable size and I want to start using ES6-style modules?

Tomas Brambora · Accepted Answer · 2016-06-18 06:16:35Z

1

OK, it's explained in this issue: https://github.com/Microsoft/TypeScript/issues/909 .

TL;DR: Don't mix internal and external modules. It doesn't work.

Which sucks bad for older projects: they're pretty much stuck with internal modules or else - good luck refactoring.

answered Jun 18, 2016 at 6:16

Tomas Brambora

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