.eslintrc.js

/* eslint-disable no-undef */
module.exports = {
  root: true,
  parser: '@typescript-eslint/parser', // the TypeScript parser we installed earlier
  parserOptions: {
    ecmaFeatures: { jsx: true }, // Allows for the parsing of JSX
  },
  env: {
    browser: true,
    node: true,
  },
  plugins: ['prettier'],
  extends: [
    'eslint:recommended', // eslint default rules
    'plugin:@typescript-eslint/eslint-recommended', // eslint TypeScript rules (github.com/typescript-eslint/typescript-eslint)
    'plugin:@typescript-eslint/recommended',
    'plugin:react/recommended', // eslint react rules (github.com/yannickcr/eslint-plugin-react)
    'plugin:jsx-a11y/recommended', // accessibility plugin
    // Prettier plugin and recommended rules
    'prettier/@typescript-eslint',
    'plugin:prettier/recommended',
  ],
  rules: {
    'prettier/prettier': ['error', {}, { usePrettierrc: true }],
    'react/react-in-jsx-scope': 'off',
    '@typescript-eslint/explicit-module-boundary-types': 'off',
    'react/prop-types': 'off', // We turn off prop-types rule, as we will use TypeScript's types instead.
    'no-undef': 'error',
    'no-restricted-imports': [
      'error',
      {
        patterns: ['@material-ui/*/*/*', '!@material-ui/core/test-utils/*'],
      },
    ],
  },
  settings: {
    react: { version: 'latest' },
  },
};