.eslintrc.js

module.exports = {
    "env": {
        "browser": true,
        "commonjs": true,
        "es6": true,
        "node": true,
        "jest/globals": true
    },
    "parserOptions": {
        "sourceType": "module",
        "ecmaVersion": 2017
    },
    "rules": {
        "indent": [
            "error",
            2
        ],
        "linebreak-style": [
            "error",
            "unix"
        ],
        "quotes": [
            "warn",
            "single"
        ],
        "semi": [
            "error",
            "always"
        ],
        'no-console': 'off',
        'no-unused-vars': [
            'warn',
            { 'args': 'none' }
        ],
        "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",
        "prettier/prettier": "error"
    },
    "plugins": ["jest", "prettier"],
    "extends": ["google", "prettier"]
};