Node.js Modules

By default, Node.js uses the CommonJS syntax for modules. There are two ways you can manually switch to ES6 module syntax:

Add "type": "module" to your package.json file
Rename your module files to .mjs instead of .js

Personally, I prefer the first option. It's cleaner and easier to manage. And remember, if you're not using ES6 modules, your code will not be in strict mode by default!

Assignment

Let's do what the JavaScript system should have done years ago and migrate our code from CommonJS to ES6 modules.

Update your package.json to allow for ES6 modules.
Update moo.js. Replace module.exports = { moo }; with an ES6 export:
Update main.js. Replace const { moo } = require("./moo.js"); with an ES6 import:
Remove 'use strict' from strict.js. With ES6 imports it should still throw an error!

Run and submit the CLI tests.