.eslintrc.js

module.exports = {
  extends: ['eslint:recommended', 'prettier'],
  parser: 'babel-eslint',
  plugins: ['import', 'prettier'],
  env: {
    node: true,
    es6: true,
  },
  root: true,
  rules: {
    'prettier/prettier': [
      'error',
      { trailingComma: 'es5', singleQuote: true, printWidth: 90, tabWidth: 4, },
    ],

    'import/order': [
      'error',
      {
        groups: ['builtin', 'external', 'internal', 'parent', 'sibling', 'index'],
      },
    ],
    'no-unused-vars': ['error', { vars: 'all', args: 'none' }],
    'no-underscore-dangle': 'off',
    'no-param-reassign': 'off',
    'no-console': 'off',
    'no-warning-comments': ['warn', { terms: ['fixme'], location: 'start' }],
  },
};