.eslintrc

{
    "extends": "airbnb-base",
    "root": true,
    "rules": {
        "arrow-parens": ["warn", "as-needed"],
        "consistent-return": "off",
        "curly": ["warn", "multi-or-nest", "consistent"],
        "func-names": "off",
        "function-paren-newline": ["error", "consistent"],
        "indent": ["warn", 4, {"SwitchCase": 1}],
        "linebreak-style": "off",
        "max-len": ["error", 80],
        "no-confusing-arrow": "off",
        "no-console": "off",
        "no-continue": "off",
        "no-labels": ["error", {"allowLoop": true}],
        "no-mixed-operators": ["warn", {
            "groups": [
                ["%", "**", "*"],
                ["%", "**", "/"],
                ["&", "|", "^", "~", "<<", ">>", ">>>"],
                ["==", "!=", "===", "!==", ">", ">=", "<", "<="],
                ["&&", "||"],
                ["in", "instanceof"]
            ],
            "allowSamePrecedence": false
        }],
        "no-param-reassign": "off",
        "no-plusplus": "off",
        "no-restricted-syntax": [
            "error",
            {
                "selector": "ForInStatement",
                "message": "for..in loops iterate over the entire prototype chain, which is virtually never what you want. Use Object.{keys,values,entries}, and iterate over the resulting array."
            },
            {
                "selector": "ForOfStatement",
                "message": "iterators/generators require regenerator-runtime, which is too heavyweight for this guide to allow them. Separately, loops should be avoided in favor of array iterations."
            },
            {
                "selector": "WithStatement",
                "message": "`with` is disallowed in strict mode because it makes code impossible to predict and optimize."
            }
        ],
        "no-underscore-dangle": "off",
        "no-use-before-define": "off",
        "object-curly-spacing": ["warn", "never"],
        "one-var": "off",
        "prefer-const": "off",
        "space-before-function-paren": ["warn", "never"],
        "template-curly-spacing": ["warn", "always"],
        "import/no-extraneous-dependencies": ["error", {"devDependencies": true}]
    },
    "overrides": [
        {
            "files": [
                "src/**/*.js"
            ],
            "env": {
                "browser": true,
                "node": false
            },
            "rules": {
                "no-console": "warn"
            }
        }
    ]
}