my ESLint config

.eslintignore

**/node_modules/**
!.*.js

.eslintrc.js

module.exports = {
  env: {
    browser: true,
    es2021: true,
  },
  parserOptions: {
    ecmaVersion: 12,
    sourceType: 'module',
  },
  extends: [
    'airbnb-base' // https://github.com/airbnb/javascript
  ],
  rules: {
    semi: ['error', 'never'],
    'arrow-parens': 'off',
    'no-undef': 'error',
    'import/no-extraneous-dependencies': [
      'error', {
        devDependencies: true,
        optionalDependencies: false,
        peerDependencies: false,
      }],
    'func-names': ['warn', 'as-needed'],
  },
}

README.md

https://codeburst.io/eslint-everything-you-need-to-know-about-enforcing-a-style-guide-with-eslint-d4520c732dcb https://github.com/airbnb/javascript