.eslintrc.json

{
    "extends": ["eslint:recommended"],
    "parserOptions": {
        "sourceType": "module",
        "ecmaVersion": 2018
    },
    "env": {
        "node": true,
        "es6": true
    },
    "rules": {
        "camelcase": 2,
        "semi": 2,
        "quotes": [2, "single"],
        "no-undef": 2,
        "no-use-before-define": [2, "nofunc"],
        "no-multi-spaces": 0,
        "no-underscore-dangle": 0,
        "no-shadow": 0,
        "strict": 2,
        "key-spacing": ["error", {
            "beforeColon": false,
            "afterColon": true
        }],
        "keyword-spacing": [2, {
            "before": true,
            "after": true
        }],
        "no-alert": 0,
        "array-callback-return": 1,
        "no-self-assign": 2,
        "id-blacklist": [2, "self"],
        "template-curly-spacing": [2, "never"],
        "space-before-function-paren": [2, {"anonymous": "never", "named": "always"}]
    }
}