Run results for: Array filter vs Set delete

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; GM1913) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Mobile Safari/537.36

Browser: Chrome Mobile 87

Operating system: Android

Device Platform: Mobile

Date tested: 3 years ago

Test name	Executions per second
Filter arr10	5603384.5 Ops/sec
Filter set10	6919983.0 Ops/sec
Filter arr1000	342287.4 Ops/sec
Filter set1000	6995248.5 Ops/sec
Filter arr1000000	49.8 Ops/sec
Filter set1000000	7157498.5 Ops/sec

Script Preparation code:

function arrayWithLength(length) {
    return Array(length).fill().map((_, i) => i);
}
var arr10 = arrayWithLength(10);
var arr1000 = arrayWithLength(1000);
var arr1000000 = arrayWithLength(1000000);
var set10 = new Set(arr10);
var set1000 = new Set(arr1000);
var set1000000 = new Set(arr1000000);

Tests:

Filter arr10
arr10.filter(i => i === 5);
Filter set10
set10.delete(5);
Filter arr1000
arr1000.filter(i => i === 500);
Filter set1000
set1000.delete(500);
Filter arr1000000
arr1000000.filter(i => i === 500000);
Filter set1000000
set1000000.delete(500000);

Run results for: Array filter vs Set delete

Filter arr10

Filter set10

Filter arr1000

Filter set1000

Filter arr1000000

Filter set1000000