.eslintrc.js

/*
 * This software Copyright by the RPTools.net development team, and
 * licensed under the Affero GPL Version 3 or, at your option, any later
 * version.
 *
 * MapToolServer Source Code is distributed in the hope that it will be
 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 * You should have received a copy of the GNU Affero General Public
 * License * along with this source Code.  If not, please visit
 * <http://www.gnu.org/licenses/> and specifically the Affero license
 * text at <http://www.gnu.org/licenses/agpl.html>.
 */

module.exports = {
  parser: '@typescript-eslint/parser', // Specifies the ESLint parser
  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
    },
  },
  settings: {
    //react: {
    //version: "detect" // Tells eslint-plugin-react to automatically detect the version of React to use
    //}
  },
  extends: [
    //"plugin:react/recommended", // Uses the recommended rules from @eslint-plugin-react
    'plugin:@typescript-eslint/recommended', // Uses the recommended rules from the @typescript-eslint/eslint-plugin
    'prettier/@typescript-eslint', // Uses eslint-config-prettier to disable ESLint rules from @typescript-eslint/eslint-plugin that would conflict with prettier
    'plugin:prettier/recommended', // Enables eslint-plugin-prettier and eslint-config-prettier. This will display prettier errors as ESLint errors. Make sure this is always the last configuration in the extends array.
    'plugin:promise/recommended',
  ],
  plugins: ['license-header', 'promise', 'prefer-arrow', 'unicorn'],
  rules: {
    // Place to specify ESLint rules. Can be used to overwrite rules specified from the extended configs
    // e.g. "@typescript-eslint/explicit-function-return-type": "off",
    'license-header/header': ['error', './resources/license-header-js.txt'],
    'prefer-arrow/prefer-arrow-functions': [
      'warn',
      {
        disallowPrototype: true,
        singleReturnOnly: false,
        classPropertiesAllowed: false,
      },
    ],
  },
};