.eslintrc.json

// Based on Odoo's .eslintrc.js
{
  "extends": ["eslint:recommended", "plugin:prettier/recommended", "plugin:node/recommended"],
  "parserOptions": {
    "ecmaVersion": 2022,
    "sourceType": "module"
  },
  "env": {
    "node": true,
    "browser": false,
    "es2022": true
  },
  "overrides": [
    {
      "files": ["tests/utils/*.js", "tests/*.js"],
      "plugins": ["jest", "import"],
      "env": {
        "jest": true,
        "jest/globals": true
      },
      "extends": ["plugin:jest/recommended"]
    },
    {
      "files": ["src/client.js"],
      "env": {
        "browser": true,
        "node": false
      }
    },
    {
      "files": ["src/shared/*.js"],
      "env": {
        "browser": true,
        "node": true
      }
    }
  ],
  "ignorePatterns": "dist/*",
  "rules": {
    "prettier/prettier": ["error", {
      "tabWidth": 4,
      "semi": true,
      "singleQuote": false,
      "printWidth": 100,
      "endOfLine": "auto"
    }],
    "node/no-unsupported-features/es-syntax": "off",
    "node/no-missing-import": "off",
    "no-console": "error",
    "no-undef": "error",
    "no-restricted-globals": ["error", "event", "self"],
    "no-const-assign": ["error"],
    "no-debugger": ["error"],
    "no-dupe-class-members": ["error"],
    "no-dupe-keys": ["error"],
    "no-dupe-args": ["error"],
    "no-dupe-else-if": ["error"],
    "no-unsafe-negation": ["error"],
    "no-duplicate-imports": ["error"],
    "valid-typeof": ["error"],
    "no-unused-vars": ["error", { "vars": "all", "args": "none", "ignoreRestSiblings": false, "caughtErrors": "all" }],
    "curly": ["error", "all"],
    "no-restricted-syntax": ["error", "PrivateIdentifier"],
    "prefer-const": ["error", {
      "destructuring": "all",
      "ignoreReadBeforeAssign": true
    }]
  }
}