function PluralRuleSelect(locale, type, _n, _a) {
        var IntegerDigits = _a.IntegerDigits, NumberOfFractionDigits = _a.NumberOfFractionDigits, FractionDigits = _a.FractionDigits;
        return PluralRules.localeData[locale].fn(NumberOfFractionDigits
            ? IntegerDigits + "." + FractionDigits
            : IntegerDigits, type === 'ordinal');
    }
http://ecma-international.org/ecma-402/7.0/index.html#sec-pluralruleselect
@param locale
@param type
@param _n
@param param3