NodeJS (Server): ReferenceError: require is not defined when type: module

Question

On Node 13.8 I\'m trying to use import / export.

EG: import {ChatClient, Message, MessageParser} from \'./chat-client/module.js\';

But when i d

Answer 1

As the documentation says:

No require, exports, module.exports, __filename, __dirname
These CommonJS variables are not available in ES modules.

https://nodejs.org/api/esm.html#esm_no_require_exports_module_exports_filename_dirname

You can't use both natively. If you want to do that use Babel to transpile your code.

Answer 2

Several points:

1. Use .mjs instead of .js.
2. Never use require.
3. It is optional to use "type": "module".