Run results for: Get from object vs get from map

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Object

16K/s

Map

3K/s

View exact numbers

Test name	Executions per second
✓ Object	16,443 Ops/sec
Map	3,208 Ops/sec

Tests:

Object
let obj = {}; for (let i = 0; i < 10000; i++) { obj[i] = i; } let out = new Array(100); for (let t = 0; t < 100; t++) { const idx = Math.floor(Math.random() * 10000); out[t] = obj[idx] }
Map
let map = new Map(); for (let i = 0; i < 10000; i++) { map.set(i, i); } let out = new Array(100); for (let t = 0; t < 100; t++) { const idx = Math.floor(Math.random() * 10000); out[t] = map.get(idx) }