.eslintrc.json

{
    "env": {
        "browser": true,
        "commonjs": true,
        "es6": true,
        "jquery": true,
        "node": true
    },
    "extends": "eslint:recommended",
    "globals": {
        "Atomics": "readonly",
        "SharedArrayBuffer": "readonly"
    },
    "parserOptions": {
        "sourceType": "module",
        "ecmaVersion": 2018
    },
    "rules": {
        "no-console": "warn",
        "semi": ["error", "always"],
        "indent": ["error", 4],
        "no-trailing-spaces": [
            "error",
            {
                "ignoreComments": true
            }
        ],
        "space-before-blocks": ["error", "always"],
        "keyword-spacing": [
            "error",
            {
                "before": true,
                "after": true
            }
        ],
        "prefer-const": "error",
        "prefer-arrow-callback": "error",
        "arrow-parens": ["error", "always"],
        "quotes": [2, "double", "avoid-escape"]
    }
}