Run results for: Array filter vs Set delete

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15

Browser: Safari 17

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

Filter set1000000

188.6M/s

Filter set10

162.3M/s

Filter set1000

132.4M/s

Filter arr10

56.5M/s

Filter arr1000

1.2M/s

Filter arr1000000

1K/s

View exact numbers

Test name	Executions per second
✓ Filter set1000000	188,601,344 Ops/sec
Filter set10	162,287,584 Ops/sec
Filter set1000	132,394,864 Ops/sec
Filter arr10	56,502,660 Ops/sec
Filter arr1000	1,188,302 Ops/sec
Filter arr1000000	1,225 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);