.eslintrc.js

module.exports = {
  env: {
    browser: true,
    es2021: true,
  },
  extends: ['plugin:react/recommended', 'airbnb-typescript', 'prettier'],
  plugins: [
    'react',
    '@typescript-eslint',
    'eslint-plugin-import-helpers',
    'prettier',
  ],
  parser: '@typescript-eslint/parser',
  parserOptions: {
    ecmaFeatures: {
      jsx: true,
    },
    ecmaVersion: 12,
    sourceType: 'module',
    tsconfigRootDir: __dirname,
    project: ['./tsconfig.json'],
  },
  ignorePatterns: ['build/**'],
  globals: {
    React: true,
    JSX: true,
  },
  rules: {
    'react/jsx-filename-extension': [
      2,
      {
        extensions: ['.ts', '.tsx'],
      },
    ],
    'prettier/prettier': 'error',
    'no-use-before-define': 'off',
    '@typescript-eslint/no-use-before-define': ['error'],
    'max-classes-per-file': 'off',
    'import/prefer-default-export': 'off',
    'comma-dangle': [
      'error',
      {
        arrays: 'always-multiline',
        objects: 'always-multiline',
        imports: 'always-multiline',
        exports: 'always-multiline',
        functions: 'never',
      },
    ],
    'object-curly-newline': 'off',
    'import-helpers/order-imports': [
      'error',
      {
        alphabetize: {
          ignoreCase: true,
          order: 'asc',
        },
        groups: ['module', ['parent', 'sibling', 'index']],
        newlinesBetween: 'always',
      },
    ],
    'no-multiple-empty-lines': [
      'error',
      {
        max: 1,
      },
    ],
    'sort-imports': [
      'error',
      {
        ignoreCase: true,
        ignoreDeclarationSort: true,
      },
    ],
  },
};