.eslintrc.json

{
    "parserOptions": {
        "ecmaVersion": 6
    },
    "extends": "eslint:recommended",
    "rules": {
        "brace-style": ["error", "allman", {"allowSingleLine": true}],
        "camelcase": ["error"],
        "comma-spacing": ["error", {"before": false, "after": true}],
        "indent": ["error", 4, {"SwitchCase": 1}],
        "key-spacing": ["error", {"beforeColon": false, "afterColon": true}],
        "keyword-spacing": ["error", {"before": true, "after": true}],
        "max-len": ["error", {"code": 116}],
        "object-curly-spacing": ["error", "never"],
        "no-case-declarations": ["off"],
        "no-console": ["error", {"allow": ["warn", "error"]}],
        "no-tabs": ["error"],
        "no-trailing-spaces": ["error"],
        "no-var": ["error"],
        "quotes": ["error", "single"],
        "semi": ["error", "always"],
        "space-before-function-paren": ["error", "never"],
        "space-in-parens": ["error", "never"]
    }
}