.eslintrc.json

{
    "root": true,
    "extends": "eslint:recommended",
    "parserOptions": {
        "ecmaVersion": 6,
        "sourceType": "script"
    },
    "globals": {
        "YUI_config": true
    },
    "rules": {
        "no-unused-vars": ["error", { "args": "after-used" }],
        "semi": 2,
        "eqeqeq": [2, "always"],
        "no-console": 0,
        "no-irregular-whitespace": 2,
        "no-useless-escape": 0,
        "indent": ["error", 4],
        "space-before-function-paren": ["error", "never"],
        "brace-style": [2, "1tbs", { "allowSingleLine": true }],
        "arrow-body-style": [2, "always"],
        "array-bracket-spacing": [2, "never"],
        "object-curly-spacing": [2, "always"],
        "key-spacing": ["error", { "beforeColon": false }]
    },
    "env": {
        "node": true,
        "browser": true
    }
}