Node.js has included experimental support for ES6 support.
Read more about here: https://nodejs.org/docs/latest-v13.x/api/esm.html#esm_enabling.

TLDR;

Node.js >= v13

It’s very simple in Node.js 13 and above. You need to either:

  • Save the file with .mjs extension, or
  • Add { "type": "module" } in the nearest package.json.

You only need to do one of the above to be able to use ECMAScript modules.

Node.js <= v12

If you are using Node.js version 9.6 – 12, save the file with ES6 modules with .mjs extension and run it like:

node --experimental-modules my-app.mjs