Enabling ECMAScript modules in Node.js [duplicate] - node.js

Question

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Node.js - SyntaxError: Unexpected token import
(16 answers)
Closed 3 years ago.
I'm experimenting with ECMAScript modules in Node.js 12 but I'm struggling with. Following the official docs just by adding the top-level field "type" with a value of "module" it should be enough to keep using the extension .js in this Node.js version but I can not find why is not working as expected. Am I missing something?
$ node --version
v12.14.1
$ cat package.json
{
"type": "module",
"scripts": {
"start": "node test.js"
}
}
$ npm start
> app# start /usr/src/app
> node test.js
/usr/src/app/test.js:1
import { myFunction } from './module.js';
^^^^^^
SyntaxError: Cannot use import statement outside a module
at Module._compile (internal/modules/cjs/loader.js:891:18)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:991:10)
at Module.load (internal/modules/cjs/loader.js:811:32)
at Function.Module._load (internal/modules/cjs/loader.js:723:14)
at Function.Module.runMain (internal/modules/cjs/loader.js:1043:10)
at internal/main/run_main_module.js:17:11
$ cat test.js
import { myFunction } from './module.js';
myFunction();
$ cat module.js
function myFunction() {
console.log('hello from module');
}
export { myFunction };

Answer 1

https://nodejs.org/docs/latest-v12.x/api/esm.html#esm_code_import_code_statements
Version 12 docs for that import statement show that you can only import the default export via import ... from ...
So import myFunction from './module.js'; would work if you exported myFunction as export default myFunction;