Run results for: set.add vs. array.push

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36 Edg/137.0.0.0

Browser: Chrome 137

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Push

12.2M/s

Add

10.0M/s

View exact numbers

Test name	Executions per second
✓ Push	12,228,769 Ops/sec
Add	10,020,596 Ops/sec

Script Preparation code:

var a = Array.from({length: 100000}, () => Math.floor(Math.random() * 40));
var b = new Set(a);

Tests: