index.js

module.exports = {
  env: {
    es6: true,
    node: true,
  },
  extends: [
    'eslint:recommended',
    'plugin:import/recommended',
  ],
  plugins: [
    'import',
  ],
  parserOptions: {
    ecmaVersion: 2018,
  },
  rules: {
    'array-bracket-spacing': [
      'error',
      'never',
    ],
    'arrow-body-style': 0,
    'arrow-parens': [
      'error',
      'as-needed',
    ],
    'comma-dangle': [
      'error',
      'always-multiline',
    ],
    'comma-spacing': [
      'error',
      { before: false, after: true },
    ],
    'implicit-arrow-linebreak': 0,
    'import/newline-after-import': [
      'error',
    ],
    'import/no-cycle': [
      'error',
    ],
    'import/no-unresolved': [
      'error',
      { commonjs: true, caseSensitive: true },
    ],
    'import/no-extraneous-dependencies': [
      'error',
      { optionalDependencies: false, devDependencies: ['test/**'] },
    ],
    'import/order': [
      'error',
      { groups: ['builtin', 'external', 'internal'] },
    ],
    'indent': [
      'error',
      2,
      { SwitchCase: 1 },
    ],
    'keyword-spacing': [
      'error',
    ],
    'linebreak-style': [
      'error',
      'unix',
    ],
    'newline-per-chained-call': 0,
    'no-multi-spaces': [
      'error',
    ],
    'no-shadow': [
      'error',
      { builtinGlobals: true, hoist: 'all' },
    ],
    'no-underscore-dangle': 0,
    'no-unused-expressions': 0,
    'object-curly-spacing': [
      'error',
      'always',
    ],
    'quotes': [
      'error',
      'single',
    ],
    'semi': [
      'error',
      'always',
    ],
    'semi-spacing': [
      'error',
      { before: false, after: true },
    ],
    'spaced-comment': [
      'error',
      'always',
    ],
  },
};