Run results for: Array vs Map

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

Browser: Chrome 119

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
JS Array set	32848.7 Ops/sec
JS Array map	23870.4 Ops/sec

Tests:

JS Array set
const jsArray = Array.from({ length: 1000 }, (_, i) => ({ id: i, a: 1, b: 2, timeMs: 0, })); // * update jsArray timeMs with 1 jsArray.forEach((item) => (item.timeMs = 1));
JS Array map
const jsArray = Array.from({ length: 1000 }, (_, i) => ({ id: i, a: 1, b: 2, timeMs: 0, })); // * update jsArray timeMs with jsArray.map const jsArrayMap = jsArray.map((item) => ({ ...item, timeMs: 1 }));