Run results for: Test_Currency

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36

Browser: Chrome 87

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
forEach	653580032.0 Ops/sec
Reduce	376251.1 Ops/sec

Tests:

forEach
const currency = [{ usd: 5 }, { uah: 10 }, { usd: 3 }]; const merge = (data) => { const res = {}; data.forEach((item) => { for (let [key, value] of Object.entries(item)) { !res[key] ? (res[key] = value) : (res[key] += value); } }); return res; };
Reduce
const currency = [{ usd: 5 }, { uah: 10 }, { usd: 3 }]; const result = currency.reduce((res, item) => { for (const [key, value] of Object.entries(item)) { !res[key] ? (res[key] = value) : (res[key] = res[key] + value); } return res; }, {});