.eslintrc.json

{
    "env": {
        "browser": true,
        "node": true,
        "es6": true
    },
    "parserOptions": {
        "ecmaVersion": 6,
        "sourceType": "module"
    },
    "extends": "eslint:recommended",
    "rules": {
        "no-undef": "off",
        "no-console": "off",
        "keyword-spacing": ["error", { "before": true, "after": true }],
        "key-spacing": ["error", { "beforeColon": false, "afterColon": true, "mode": "strict" }],
        "space-infix-ops": ["error", { "int32Hint": false }],
        "no-trailing-spaces": ["error", { "skipBlankLines": false }],
        "semi": ["error", "always"],
        "block-spacing": ["error", "always"],
        "object-curly-spacing": ["error", "always"],
        "no-multi-spaces": "error",
        "no-multiple-empty-lines": ["error", { "max": 2 }],
        "no-var": "error",
        "eol-last": ["error", "always"]
    }
}