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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | 463x 360x 65x 122x 122x 160x 95x 122x 8x | function mapObject(object, cb) { return Object.fromEntries(Object.entries(object).map(cb)); } function mapObjectValues(object, cb) { return mapObject(object, ([key, value]) => [key, cb(value)]); } function removeDuplicates(list) { return list.filter((prop, index, array) => array.indexOf(prop) === index); } function filterObjectKeys(obj, keys) { const newObj = {}; // Iterate in existing order for (const key in obj) { if (keys.includes(key)) { newObj[key] = obj[key]; } } return newObj; } module.exports = { mapObject, mapObjectValues, removeDuplicates, filterObjectKeys }; |