typescript-javascript-module-mismatch.js

/** AdminRepository.ts **/
"use strict";

import * as _ from 'underscore';
import * as nconf from 'nconf';

const businessRules = nconf.get("BusinessRules");
let admins = businessRules.Administrators; 

export default class AdminRepository implements IAdminRepository {

    IsUserAdmin(username){
        return _.contains(admins, username);
    }

}

/** ideas.js **/
const AdminRepository = require('../repositories/AdminRepository');
let adminRepository = new AdminRepository.default();

/** after converting it to Ideas.ts it will become: **/
import AdminRepository from '../repositories/AdminRepository';
const adminRepository = new AdminRepository();