eslint-plugin-import-esm

ESLint plugin that enforces imports to follow native ESM resolution.

Installation

You'll first need to install ESLint v9:

1npm i eslint --save-dev

Next, install eslint-plugin-import-esm:

1npm install eslint-plugin-import-esm --save-dev

This plugin works well with eslint-plugin-import, which validates existence of paths amongst other checks.

Usage

Using the recommended preset:

1import { defineConfig } from "eslint/config";
2import importEsmPlugin from 'eslint-plugin-import-esm';
3
4export default defineConfig([
5  importEsmPlugin.configs.recommended,
6  ...
7]);

Using without the recommended preset:

1import { defineConfig } from "eslint/config";
2import importEsmPlugin from 'eslint-plugin-import-esm';
3
4export default defineConfig([
5  {
6    plugins: { 'import-esm': importEsmPlugin },
7    rules: {
8      'import-esm/explicit-extension': ['error', { extension: '.mjs' }]
9    }
10  }
11]);

Rules

💼 Configurations enabled in.
✅ Set in the recommended configuration.
🔧 Automatically fixable by the --fix CLI option.

Name	Description	💼	🔧
explicit-extension	Validate if import and export paths have an explicit extension	✅	🔧

Configs

	Name
✅	recommended