Nullish coalescing (??) causes SyntaxError

[bolivier]

I'm on Node 16.13.0, and if I run a script with -r esm, I get a syntax error that isn't present when running without it.

Reproduceable example:

This does not run.

// test.js
import { h } from './test2';
console.log(undefined ?? h);

// test2.js
export const h = "hi";

This runs.

// test.js
const { h } = require('./test2');
console.log(undefined ?? h);

// test2.js
module.exports = {
  h: 'hi'
};

The error I see reads

/proj/test.js:2
console.log(undefined ?? h);
                       ^

SyntaxError: Invalid or unexpected token
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1153:10)

[blakethepatton]

Can confirm.

[nbrdx]

Also confirming the problem, using the same node version

[TLovers]

Use a `? . 'will also get syntax errors
SyntaxError: Invalid or unexpected token

[veeramarni]

I used chakra-ui and when starting the backend server which uses SSR, it fails with this error in Node 16. This need to fixed in esm