Run results for: set.add vs array.push

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_2_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/131.0.6778.154 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 131

Operating system: iOS 18.2.1

Device Platform: Mobile

Date tested: one year ago

Benchmark engine: Benchmark.js

array.push

78K/s

set.add

22K/s

View exact numbers

Test name	Executions per second
✓ array.push	78,336 Ops/sec
set.add	22,165 Ops/sec

Tests:

array.push
const a = [] for (let i = 0; i < 3000; i++) a.push(i)
set.add
const s = new Set() for (let i = 0; i < 3000; i++) s.add(i)