.eslintrc.js

module.exports = {
  parser: "@typescript-eslint/parser",
  parserOptions: {
    ecmaVersion: 2020,
    sourceType: "module",
    project: ["./tsconfig.json", ".erb/tsconfig.json"],
    tsconfigRootDir: __dirname,
    createDefaultProgram: true,
  },
  plugins: ["simple-import-sort", "strict-booleans", "react-hooks", "prettier", "@stylexjs", "lodash"],
  extends: [
    "plugin:react/recommended",
    "eslint:recommended",
    // Uses the recommended rules from the @typescript-eslint/eslint-plugin
    "plugin:@typescript-eslint/recommended",
    // Uses eslint-config-prettier to disable ESLint rules from @typescript-eslint/eslint-plugin that would conflict with prettier
    "plugin:import/errors",
    "plugin:import/warnings",
    "plugin:import/typescript",
    "plugin:storybook/recommended",
    "plugin:jest/recommended",
    "plugin:promise/recommended",
    // Make sure prettier goes last
    "prettier",
  ],
  settings: {
    react: {
      version: "detect",
    },
    "import/resolver": {
      // See https://github.com/benmosher/eslint-plugin-import/issues/1396#issuecomment-575727774 for line below
      node: {},
      webpack: {
        config: require.resolve("./.erb/configs/webpack.config.eslint.ts"),
      },
      typescript: {},
    },
    "import/parsers": {
      "@typescript-eslint/parser": [".ts", ".tsx"],
    },
  },
  env: {
    browser: true,
    node: true,
  },
  rules: {
    "prettier/prettier": [
      "error",
      {
        semi: true,
        trailingComma: "all",
        singleQuote: false,
        printWidth: 120,
        tabWidth: 2,
      },
    ],
    "arrow-body-style": "off",
    "prefer-arrow-callback": "off",
    // 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",
    "react/prop-types": "off",
    "react/display-name": "off",
    "react/no-unescaped-entities": "warn",
    "@typescript-eslint/no-unused-vars": [
      "error",
      {
        argsIgnorePattern: "^_",
        varsIgnorePattern: "^_",
      },
    ],
    "@typescript-eslint/explicit-module-boundary-types": "off",
    "@typescript-eslint/no-explicit-any": "off",
    "@typescript-eslint/explicit-member-accessibility": ["error", { overrides: { constructors: "no-public" } }],
    "@typescript-eslint/no-floating-promises": "error",
    "@typescript-eslint/consistent-type-imports": "warn",
    "promise/always-return": "off",
    "promise/catch-or-return": [
      "warn",
      {
        allowFinally: true,
      },
    ],
    "import/no-named-as-default-member": "off",
    "simple-import-sort/imports": "warn",
    "simple-import-sort/exports": "warn",
    "strict-booleans/no-nullable-numbers": "error",
    "no-undef": "off",
    "new-cap": "error",
    "@typescript-eslint/consistent-type-imports": "warn",
    "@typescript-eslint/no-non-null-assertion": "off",
    "react-hooks/rules-of-hooks": "error", // Checks rules of Hooks
    "react-hooks/exhaustive-deps": "warn", // Checks effect dependencies
    curly: "error",
    "@typescript-eslint/explicit-function-return-type": "off",
    "no-param-reassign": ["error", { props: false }],
    // A temporary hack related to IDE not resolving correct package.json
    "import/no-extraneous-dependencies": "off",
    "import/no-unresolved": "error",
    // Since React 17 and typescript 4.1 you can safely disable the rule
    "react/react-in-jsx-scope": "off",
    "react/jsx-boolean-value": ["error", "always"],
    "react/no-unstable-nested-components": "error",
    "@stylexjs/valid-styles": "error",
    "lodash/chaining": "error",
    "lodash/import-scope": [2, "method"],
    "no-restricted-imports": ["error", "lodash/chain"],
    "react/jsx-curly-brace-presence": ["error", "never"]
  },
  ignorePatterns: ["/*.js", "node_modules"],
};