import/no-self-import

A file that imports itself is almost always a mistake left over from a rename, a move, or an editor's auto-import. Everything it gets that way is already in scope, and require() returns the exports object before the file has finished filling it.

The rule resolves each path, so it also catches other spellings of the same file, such as . in an index.js. It checks import, export .. from, import() and require().

Configure

Off by default. To turn it on:

[lint.rules]
"import/no-self-import" = "error" # or "warn"

Examples

Reported:

import * as cart from "./cart.js";

export function total(items) {
  return items.length;
}

export function print(items) {
  console.log(cart.total(items));
}

const { version } = require("."); // undefined

exports.version = "1.0.0";

Not reported:

export function total(items) {
  return items.length;
}

export function print(items) {
  console.log(total(items));
}