typescript migration demo

myLib.ts

// typescript will give error: An import path cannot end with a '.ts' extension.
// this is just for clarification purpose!
import ModuleA from './ModuleA.ts';
import * as myLibTypes from './types.ts';
import * as myLibApi from './myLibApi.js';

const myLib = {
  ModuleA,
  // Need to expose types so that consumers can use them
  myLibTypes,
};

Object.assign(myLib, myLibApi);
export = myLib;