Run results for: Array Intersection vs. Set Intersection vs. Lodash part 6

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Browser: Chrome 122

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Javascript Set intersection (larger set first)	70135.4 Ops/sec
Lodash intersection	182721.8 Ops/sec
Javascript Array intersection	67760.9 Ops/sec
Javascript Set intersection (new feature) (larger set first)	1621809.5 Ops/sec
Javascript Set intersection (smaller set first)	312044.4 Ops/sec
Javascript Set intersection (new feature) (smaller set first)	1709402.2 Ops/sec
Javascript Set intersection (new feature) (smaller set first) (with set init time)	179355.4 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));

var firstSet = new Set(first);
var secondSet = new Set(second);

Tests:

Javascript Set intersection (larger set first)
new Set(first.filter(item => secondSet.has(item)));
Lodash intersection
_.intersection(first, second)
Javascript Array intersection
first.filter(it => second.includes(it))
Javascript Set intersection (new feature) (larger set first)
firstSet.intersection(secondSet)
Javascript Set intersection (smaller set first)
new Set(second.filter(item => firstSet.has(item)));
Javascript Set intersection (new feature) (smaller set first)
secondSet.intersection(firstSet)
Javascript Set intersection (new feature) (smaller set first) (with set init time)
const newFirstSet = new Set(first); const newSecondSet = new Set(second); newFirstSet.intersection(newSecondSet)

Run results for: Array Intersection vs. Set Intersection vs. Lodash part 6

Javascript Set intersection (larger set first)

Lodash intersection

Javascript Array intersection

Javascript Set intersection (new feature) (larger set first)

Javascript Set intersection (smaller set first)

Javascript Set intersection (new feature) (smaller set first)

Javascript Set intersection (new feature) (smaller set first) (with set init time)