Rule proposal: `prefer-module`

Should fail on all legacy commonjs stuff.

Fail

const foo = require('./foo');

const foo = path.join(__dirname, './foo.js');

module.exports = {};

exports.foo = {};

Pass

export default foo;

const foo = path.join(path.dirname(url.fileURLToPath(import.meta.url)), './foo.js');

[sindresorhus]

Just want to point out that:

const foo = path.join(path.dirname(url.fileURLToPath(import.meta.url)), './foo.js');

could be simplified to:

const foo = fileURLToPath(new URL('foo.js', import.meta.url));

and in many cases you could just do this as fs methods support URL:

const foo = new URL('foo.js', import.meta.url);

We should note this in the docs.

[sindresorhus]

How about just prefer-module or prefer-modules? Alternatively, prefer-js-module.