.eslintrc.js

'use strict';

module.exports = {
  parser: 'babel-eslint',
  parserOptions: {
    ecmaFeatures: {
      jsx: true,
    },
  },
  settings: {
    react: {
      version: 'latest',
    },
  },
  env: {
    browser: true,
    es6: true,
    node: true,
    'jest/globals': true,
    'cypress/globals': true,
  },
  plugins: ['react', 'react-hooks', 'jest', 'cypress', 'import', '@emotion'],
  rules: {
    curly: ['error', 'multi-line'],
    'jsx-quotes': 'error',
    'no-shadow': 'warn',
    'no-trailing-spaces': 'error',
    'no-undef': 'error',
    'no-unused-expressions': 'error',
    'react-hooks/rules-of-hooks': 'error',
    'no-unused-vars': [
      'error',
      {
        args: 'after-used',
        ignoreRestSiblings: true,
        vars: 'all',
      },
    ],
    'import/no-extraneous-dependencies': [
      'error',
      {
        devDependencies: [
          '**/*test.js',
          '**/tests/**/*.js',
          '**/examples/**/*.js',
          '**/build/**/*.js',
        ],
      },
    ],
    'object-curly-spacing': ['error', 'always'],
    quotes: ['error', 'single', { avoidEscape: true, allowTemplateLiterals: true }],
    'react/jsx-boolean-value': 'warn',
    'react/jsx-no-undef': 'error',
    'react/jsx-uses-react': 'error',
    'react/jsx-uses-vars': 'error',
    'react/jsx-wrap-multilines': 'warn',
    'react/no-did-mount-set-state': 'warn',
    'react/no-did-update-set-state': 'warn',
    'react/no-unknown-property': 'warn',
    'react/react-in-jsx-scope': 'error',
    'react/self-closing-comp': 'warn',
    'react/sort-prop-types': 'warn',
    'react/prop-types': 'off', //TODO: enable https://github.com/yannickcr/eslint-plugin-react/blob/master/docs/rules/prop-types.md
    'react/no-unescaped-entities': 'warn',
    semi: 'error',
    strict: 'off',
    'jest/no-disabled-tests': 'warn',
    'jest/no-focused-tests': 'error',
    'jest/no-identical-title': 'error',
    'jest/prefer-to-have-length': 'warn',
    'jest/valid-expect': 'error',
  },
  extends: ['eslint:recommended', 'plugin:react/recommended', 'plugin:jest/recommended'],
};