ES6 Imports inside Export default

Question

I'm currently migrating the whole code of a NodeJS application from ES5 to ES6/7.

I'm having trouble when it comes to imports :

First, I understood that making an import directly call the file. For example :

import moduleTest from './moduleTest';

This code will go into moduleTest.js and execute it.

So, the real question is about this code :

import mongoose from 'mongoose';
import autopopulate from 'mongoose-autopopulate';
import dp from 'mongoose-deep-populate';

import { someUtils } from '../utils';

const types = mongoose.Schema.Types;
const deepPopulate = dp(mongoose);

export default () => {
    // DOES SOMETHING USING types AND deepPopulate
    return someThing;
};

export const anotherModule = () => {
  // ALSO USE types and deepPopulate
};

Is this a good practice to have types and deepPopulate declared outside of the two exports ? Or should I declare them in each export ?

The reason of this question is that I'm having a conflict due to this practice (to simplify, let's say that dp(mongoose) will call something that is not declared yet)

Answer 1

You can only have one 'default' export to a module, or you can have multiple 'named' exports per module. Take a look at the following for a good description of handling exports in ES6: ECMAScript 6 Modules: The Final Syntax