.eslintrc.json

{
    "env": {
        "es2021": true,
        "node": true,
        "jest/globals": true
    },
    "extends": [
        "airbnb-base",
        "plugin:jest/recommended",
        "plugin:jest/style"
    ],
    "parser": "@typescript-eslint/parser",
    "parserOptions": {
        "ecmaVersion": 12,
        "sourceType": "module"
    },
    "plugins": [
        "@typescript-eslint",
        "jest"
    ],
    "rules": {
        "no-unused-vars": "warn",
        "indent": ["error", 4],
        "max-len": ["error", { "code" : 120 }],
        "import/prefer-default-export": "off",
        "no-underscore-dangle": "off",
        "no-restricted-syntax": "off",
        "no-console": "off",
        "import/extensions": "off",
        "import/no-unresolved": "off",
        "jest/no-disabled-tests": "warn",
        "jest/no-focused-tests": "error",
        "jest/no-identical-title": "error",
        "jest/prefer-to-have-length": "warn",
        "jest/valid-expect": "error"
    }
}