Run results for: set vs array iteration

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_1_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.1.1 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 18

Operating system: iOS 18.1.1

Device Platform: Mobile

Date tested: one year ago

array

54.7M/s

set

10.8M/s

View exact numbers

Test name	Executions per second
✓ array	54,674,812 Ops/sec
set	10,769,899 Ops/sec

Script Preparation code:

var a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
var b = new Set(a)

Tests:

array
for (const x of a) {}
set
for (const x of b) {}