RocketChat/Rocket.Chat

export const isRTLScriptLanguage = (lang: string): boolean => {
    const language = lang || 'en';
    const [languageCode] = language.split('-');

    if (!languageCode) {
        return false;
    }

    return ['ar', 'dv', 'fa', 'he', 'ku', 'ps', 'sd', 'ug', 'ur', 'yi'].includes(languageCode);
};