.eslintrc.js

module.exports = {
  root: true,
  extends: [
    'eslint:recommended',
    'plugin:prettier/recommended',
    'plugin:react/recommended', // Uses the recommended rules from @eslint-plugin-react
    'plugin:@typescript-eslint/eslint-recommended', // Uses the recommended rules from the @typescript-eslint/eslint-plugin
    'plugin:@typescript-eslint/recommended', // Uses the recommended rules from the @typescript-eslint/eslint-plugin
  ],
  parser: '@typescript-eslint/parser', // Specifies the ESLint parser
  env: {
    browser: true,
    es6: true,
    jest: true,
    node: true,
  },
  parserOptions: {
    ecmaVersion: 2020, // Allows for the parsing of modern ECMAScript features
    sourceType: 'module', // Allows for the use of imports
    ecmaFeatures: {
      jsx: true, // Allows for the parsing of JSX
      arrowFunctions: true,
    },
    //https://github.com/facebook/create-react-app/issues/7160#issuecomment-502631002
    warnOnUnsupportedTypeScriptVersion: false,
  },
  plugins: ['react', '@typescript-eslint', 'prettier'],
  settings: {
    react: {
      version: 'detect', // Tells eslint-plugin-react to automatically detect the version of React to use
    },
    'import/resolver': {
      node: {
        extensions: ['.js', '.jsx', '.ts', '.tsx'],
        paths: ['./src'],
      },
    },
  },
  rules: {
    // Existing rules
    'comma-dangle': 'off', // https://eslint.org/docs/rules/comma-dangle
    'function-paren-newline': 'off', // https://eslint.org/docs/rules/function-paren-newline
    'global-require': 'off', // https://eslint.org/docs/rules/global-require
    'import/no-dynamic-require': 'off', // https://github.com/benmosher/eslint-plugin-import/blob/master/docs/rules/no-dynamic-require.md
    'no-inner-declarations': 'off', // https://eslint.org/docs/rules/no-inner-declarations
    // New rules
    'class-methods-use-this': 'off',
    'import/extensions': 'off',
    'import/prefer-default-export': 'off',
    '@typescript-eslint/explicit-function-return-type': 'off',
    '@typescript-eslint/explicit-module-boundary-types': ['off'],
    '@typescript-eslint/no-var-requires': 'off',
    "prettier/prettier": ["error",{
      "endOfLine": "auto"}
    ]
  },
};