Run results for: Array Intersection vs. Set Intersection vs. Lodash part 3 vs ES Set Intersection

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/28.0 Chrome/130.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 130

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Javascript Set intersection

814K/s

Javascript Array intersection

428K/s

Lodash intersection

399K/s

Builtin set intersection

299K/s

View exact numbers

Test name	Executions per second
✓ Javascript Set intersection	813,835 Ops/sec
Javascript Array intersection	428,059 Ops/sec
Lodash intersection	398,711 Ops/sec
Builtin set intersection	299,136 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 first = [...Array(100)].map(it => ~~(Math.random() * 1000));
var second = [...Array(20)].map(it => ~~(Math.random() * 1000));

Tests:

Javascript Set intersection
const secondSet = new Set(second); first.filter(item => secondSet.has(item));
Lodash intersection
_.intersection(first, second)
Javascript Array intersection
first.filter(it => second.includes(it))
Builtin set intersection
const firstSet = new Set(first); const secondSet = new Set(second); firstSet.intersection(secondSet);