Run results for: set vs array iteration + for each

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/119.0.6045.109 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 119

Operating system: iOS 17.0

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
array	17242676.0 Ops/sec
set	18937476.0 Ops/sec
Array for Each	15558199.0 Ops/sec
Set for Each	18969848.0 Ops/sec

Script Preparation code:

var a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10].map(Math.random);
var b = new Set([1, 2, 3, 4, 5, 6, 7, 8, 9, 10].map(Math.random))
var c = new Set([1, 2, 3, 4, 5, 6, 7, 8, 9, 10].map(Math.random))
var d = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10].map(Math.random);

Tests:

array
for (const x of a) {}
set
for (const x of b) {}
Array for Each
d.forEach(_ => _)
Set for Each
c.forEach(_ => _)

Run results for: set vs array iteration + for each

array

set

Array for Each

Set for Each