Typescript compiler is forgetting to add file extensions to ES6 module imports?

Question

I am trying to compile a Typescript project to JS with ES6 module resolution, but something seems not right.

My tsconfig.json looks like this:

Answer 1

Keith answered it correctly.

In your main.ts

instead of

import { testText } from 'module1';

try the following

import { testText } from 'module1.js';

In my case vscode intellisense works + I get the desired output file main.js as well.