SeekingAlpha Node.js ESLint Config

9.32.0 verified Sat Apr 25 auth: no javascript

SeekingAlpha's shareable ESLint config for Node.js projects, version 9.32.0. This config packages rules from eslint-plugin-n for Node.js linting. It requires ESLint 9.39.2 and eslint-plugin-n 17.24.0 as peer dependencies and is designed for flat config only. Maintained by SeekingAlpha, it enforces a specific rule set tailored for Node.js development.

Common errors

error Error [ERR_REQUIRE_ESM]: require() of ES Module /path/to/node_modules/eslint-config-seekingalpha-node/index.js from /path/to/.eslintrc.cjs not supported. ↓

cause Attempting to use require() on an ESM-only module.

fix

Rename .eslintrc.cjs to eslint.config.js and use import statements.

error Cannot find module 'eslint-plugin-n' ↓

cause Missing peer dependency eslint-plugin-n.

fix

Install the peer dependency: npm install eslint-plugin-n@17.24.0 --save-dev

Warnings

breaking v9 is ESM-only and requires flat config; CommonJS and legacy eslintrc format are not supported. ↓

fix Use ESM imports (import) in eslint.config.js. Convert from .eslintrc to flat config if needed.

deprecated v8.x is no longer maintained; upgrade to v9 for continued updates. ↓

fix Upgrade to v9 and update ESLint to 9.x.

breaking Peer dependency version requirements are strict: ESLint 9.39.2 and eslint-plugin-n 17.24.0. Installing other versions may cause conflicts. ↓

fix Ensure your project uses exact versions: npm install eslint@9.39.2 eslint-plugin-n@17.24.0 --save-dev

gotcha This config does not include any parser or environment; you may need to add parserOptions or env per your Node version. ↓

fix If linting globals like process or __dirname, add globals: { process: 'readonly', __dirname: 'readonly' } or use the env config property if available.

Install

npm install eslint-config-seekingalpha-node

yarn add eslint-config-seekingalpha-node

pnpm add eslint-config-seekingalpha-node

Imports

default

wrong

const nodeConfig = require('eslint-config-seekingalpha-node')

correct

import nodeConfig from 'eslint-config-seekingalpha-node'

ESM-only since v9; CommonJS require is not supported.

plugins

wrong

const { plugins } = require('eslint-config-seekingalpha-node')

correct

import nodeConfig from 'eslint-config-seekingalpha-node'; const { plugins } = nodeConfig;

Accessing plugins property from config. CommonJS require is not supported.

rules

wrong

const { rules } = require('eslint-config-seekingalpha-node')

correct

import nodeConfig from 'eslint-config-seekingalpha-node'; const { rules } = nodeConfig;

Accessing rules property from config. CommonJS require is not supported.

Quickstart

This shows how to import the shareable config in ESLint flat config format, spreading plugins and rules into your own config array.

import nodeConfig from 'eslint-config-seekingalpha-node';

export default [
  {
    plugins: {
      ...nodeConfig.plugins,
    },
    rules: {
      ...nodeConfig.rules,
    },
  },
];