@nexso/eslint-config

Nexso's shared ESLint configuration for modern JavaScript and Node.js projects. Version 3 is an ESLint 10-only Flat Config.

Features

• ESLint's recommended JavaScript rules
• Node.js rules from eslint-plugin-n
• import validation through eslint-plugin-import-x
• security checks from eslint-plugin-security
• formatting rules from @stylistic/eslint-plugin
• deterministic ordering through eslint-plugin-perfectionist
• native parsing of current ECMAScript syntax, without Babel

The config keeps only the @stylistic/* implementation of migrated formatting rules. For example, suppress a long line with:

// eslint-disable-next-line @stylistic/max-len
const value = '...';

The core max-len, function-paren-newline, and function-call-argument-newline rules are disabled, so duplicate diagnostics and duplicate disable comments are no longer required.

Requirements

• Node.js ^20.19.0 || ^22.13.0 || >=24
• ESLint ^10.7.0

Installation

npm install --save-dev eslint @nexso/eslint-config

Usage

Create eslint.config.js in the project root:

import nexso from '@nexso/eslint-config';

export default [
  ...nexso,
  {
    rules: {
      // Project overrides
    },
  },
];

ESLint 10 no longer reads .eslintrc.* or .eslintignore. Put ignores in the Flat Config instead:

export default [
  { ignores: ['dist/**', 'coverage/**'] },
  ...nexso,
];

Migrating from version 2

Version 3 removes eslint-config-airbnb-extended and @microsoft/eslint-plugin-sdl, whose published peer dependency ranges do not support ESLint 10. It also removes the Babel parser because ESLint parses the modern JavaScript syntax covered by this package natively.

Review any project-specific reliance on rules supplied only by those packages before upgrading. The security, import, Node.js, stylistic, and ordering rule families remain enabled through ESLint 10-compatible plugins.

License

Apache-2.0