Run results for: Array filter vs Set delete

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:122.0) Gecko/20100101 Firefox/122.0

Browser: Firefox 122

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

Filter set1000000

14.6M/s

Filter set1000

13.7M/s

Filter set10

11.6M/s

Filter arr10

9.5M/s

Filter arr1000

89K/s

Filter arr1000000

90/s

View exact numbers

Test name	Executions per second
✓ Filter set1000000	14,635,456 Ops/sec
Filter set1000	13,690,926 Ops/sec
Filter set10	11,556,113 Ops/sec
Filter arr10	9,472,790 Ops/sec
Filter arr1000	89,337 Ops/sec
Filter arr1000000	90 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);