.eslintrc.js

module.exports = {
  env: {
    browser: true,
    es6: true,
    commonjs: true,
    jest: true,
  },
  parser: 'babel-eslint',
  settings: {
    react: {
      createClass: 'createReactClass',
      pragma: 'React',
      version: '16.8.5',
    },
  },
  parserOptions: {
    ecmaFeatures: {
      jsx: true,
    },
    ecmaVersion: 2018,
    sourceType: 'module',
  },
  plugins: ['react'],
  rules: {
    'dot-notation': 2,
    eqeqeq: 2,
    'no-const-assign': 2,
    'no-debugger': 'error',
    'no-dupe-keys': 2,
    'no-func-assign': 2,
    'no-implicit-coercion': 2,
    'no-lonely-if': 2,
    'no-param-reassign': 2,
    'no-unreachable': 2,
    'no-unused-vars': [2, {ignoreRestSiblings: true}],
    'no-var': 2,
    'object-shorthand': 2,
    'prefer-const': 2,
    'react/jsx-key': 2,
    'react/jsx-no-duplicate-props': 2,
    'react/jsx-no-undef': 2,
    'react/jsx-uses-react': 2,
    'react/jsx-uses-vars': 1,
    'react/no-deprecated': 2,
    'react/no-did-mount-set-state': 2,
    'react/no-did-update-set-state': 2,
    'react/no-direct-mutation-state': 2,
    'react/no-unknown-property': 1,
    'react/react-in-jsx-scope': 2,
    'react/self-closing-comp': 2,
    'react/sort-comp': [
      2,
      {
        order: [
          'static-methods',
          'type-annotations',
          'instance-variables',
          'lifecycle',
          'everything-else',
          '/^(on|handle).+$/',
          '/^render.+$/',
          'render',
        ],
      },
    ],
    radix: 2,
    yoda: 2,
  },
}