CLDR Plural rules converted to javascript function

twitter-cldr-rules-russinan.js

PluralRules.rules = {
    "keys": ["one", "few", "many", "other"],
    "rule": function (n) {
        return (function () {
            if (n % 10 == 1 && !(n % 100 == 11)) {
                return "one"
            } else {
                return (function () {
                    if ([2, 3, 4].indexOf(n % 10) >= 0 && !([12, 13, 14].indexOf(n % 100) >= 0)) {
                        return "few"
                    } else {
                        return (function () {
                            if (n % 10 == 0 || [5, 6, 7, 8, 9].indexOf(n % 10) >= 0 || [11, 12, 13, 14].indexOf(n % 100) >= 0) {
                                return "many"
                            } else {
                                return "other"
                            }
                        })();
                    }
                })();
            }
        })();
    }
};