Run results for: Array Intersection, big and small

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) CriOS/131.0.6778.73 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 131

Operating system: iOS 18.1.1

Device Platform: Mobile

Date tested: one year ago

Set intersection

66K/s

small.filter(big.includes)

27K/s

big.filter(small.includes)

16K/s

View exact numbers

Test name	Executions per second
✓ Set intersection	66,366 Ops/sec
small.filter(big.includes)	26,554 Ops/sec
big.filter(small.includes)	16,222 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var small = [...Array(100)].map(it => ~~(Math.random() * 1000));
var big = [...Array(1000)].map(it => ~~(Math.random() * 1000));

Tests:

big.filter(small.includes)
big.filter(x => small.includes(x))
small.filter(big.includes)
small.filter(x => big.includes(x))
Set intersection
[...new Set(big).intersection(new Set(small))]