.eslintrc.json

{
  "env": {
    "browser": true,
    "shared-node-browser": true,
    "node": true,
    "es6": true
  },
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/recommended",
    "prettier",
    "plugin:prettier/recommended",
    "plugin:react-hooks/recommended",
    "plugin:import/errors",
    "plugin:import/warnings"
  ],
  "plugins": [
    "@typescript-eslint",
    "react",
    "prettier",
    "react-hooks",
    "import",
    "@vitest",
    "jest-dom",
    "testing-library",
    "eslint-plugin-react-compiler"
  ],
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaVersion": 2018,
    "sourceType": "module",
    "ecmaFeatures": {
      "jsx": true
    }
  },
  "rules": {
    "react-compiler/react-compiler": "warn",
    "import/namespace": "off",
    "import/named": "off",
    "eqeqeq": "error",
    "no-var": "error",
    "prefer-const": "error",
    "curly": ["warn", "multi-line", "consistent"],
    "no-console": "off",
    "import/extensions": ["error", "always"],
    "import/no-unresolved": ["error", { "commonjs": true, "amd": true }],
    "import/export": "error",
    "import/no-duplicates": ["error"],
    "@typescript-eslint/explicit-module-boundary-types": "off",
    "@typescript-eslint/no-unused-vars": [
      "warn",
      { "argsIgnorePattern": "^_", "varsIgnorePattern": "^_" }
    ],
    "@typescript-eslint/no-use-before-define": "off",
    "@typescript-eslint/no-empty-function": "off",
    "@typescript-eslint/no-explicit-any": "off",
    "import/order": [
      "error",
      {
        "alphabetize": { "order": "asc", "caseInsensitive": true },
        "groups": [
          "builtin",
          "external",
          "internal",
          "parent",
          "sibling",
          "index",
          "object"
        ],
        "newlines-between": "never",
        "pathGroups": [
          {
            "pattern": "react",
            "group": "builtin",
            "position": "before"
          }
        ],
        "pathGroupsExcludedImportTypes": ["builtin"]
      }
    ],
    "react/jsx-uses-react": "off",
    "react/react-in-jsx-scope": "off",
    "sort-imports": [
      "error",
      {
        "ignoreDeclarationSort": true
      }
    ]
  },
  "settings": {
    "react": {
      "version": "detect"
    },
    "import/extensions": [".js", ".jsx", ".ts", ".tsx"],
    "import/parsers": {
      "@typescript-eslint/parser": [".js", ".jsx", ".ts", ".tsx"]
    },
    "import/resolver": {
      "alias": {
        "extensions": [".js", ".jsx", ".ts", ".tsx"],
        "map": [
          ["^valtio$", "./src/index.ts"],
          ["valtio", "./src"]
        ]
      }
    }
  },
  "overrides": [
    {
      "extends": [
        "plugin:jest-dom/recommended",
        "plugin:testing-library/react",
        "plugin:@vitest/legacy-recommended"
      ],
      "files": ["tests/**/*.ts", "tests/**/*.tsx"],
      "rules": {
        "import/extensions": ["error", "never"],
        "@vitest/expect-expect": "off",
        "@vitest/consistent-test-it": [
          "error",
          { "fn": "it", "withinDescribe": "it" }
        ],
        "@typescript-eslint/no-unused-vars": "off"
      }
    },
    {
      "files": ["./*.js"],
      "rules": {
        "@typescript-eslint/no-require-imports": "off"
      }
    },
    {
      "files": [
        "src/vanilla/utils/proxyMap.ts",
        "src/vanilla/utils/proxySet.ts"
      ],
      "rules": {
        "@typescript-eslint/no-unused-expressions": "off"
      }
    }
  ]
}