Bug: no-missing-import does not find index.js in import folder

[Ocke-Janssen]

Environment

Node version: 20.18.0
npm version: 10.8.2
ESLint version: 8
eslint-plugin-n version: 17.3.1
Operating System: MacOS

What rule do you want to report?

no-missing-import

Link to Minimal Reproducible Example

https://eslint-online-playground.netlify.app/#eNp1kDFvwyAQhf+Ky5JWcuzdWTt061J1KR0QXC1auEOAK1eR/3sPo0SOpWxw3+O9e5xFirqHWfngoPtOYhDWB4q5OXT9FzkDsbdoYD6cJO5JmYl2ddhKq40mTMSejsZHKV7AOXqQ4unEDzpIzmKOmpWErD1LbBopYM6AJkkxNB98W0VDBE3e8xyMFC2rgptGiwP2N+SzrR6VXjxwA1RMEF9DtrxYwWvoGqu9eoeYGJS5FE5lSJnTLopEU9Tw9hegCjyZyfG58EXiwp2C0j9qLF+4bWTg9xlCWRG1hV3s2u9OYoXH2ua42+sau/wDnveUww==

What did you expect to happen?

The index.js is the default when importing a folder

Participation

• I am willing to submit a pull request for this issue.

Additional comments

import './folder/index';
import './folder';

The 2nd import shows the error, it is doing the same as the 1st

[scagood]

Hi, thank you for the report.

This is actually not a bug:
https://nodejs.org/api/esm.html#mandatory-file-extensions

Node requires both the full file path, and the file extension in esm mode.

---

Technically the first should be erroring too, which is a bug.

[Ocke-Janssen]

Then lets close the issue. I'll added '/index.js' None the less I used it inside code which is afterwards converted to vanilla script