showgan@tg says to YSITDfunction getData(keys, source) { return Object.keys(source) .filter(x => keys.includes(x)) .reduce((acc, cur) => { acc[cur] = source[cur]; return acc; }, {}); } // Pass function getData(keys, source) { return Object.keys(source) .filter(keys.includes) .reduce((acc, cur) => { acc[cur] = source[cur]; return acc; }, {}); } // TypeError: Cannot convert undefined or null to object includesat Wed, Oct 24, 2018 2:22 PM