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

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

1.7M/s

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

1.6M/s

Javascript Set intersection (smaller set first)

318K/s

Lodash intersection

202K/s

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

172K/s

Javascript Set intersection (larger set first)

69K/s

Javascript Array intersection

68K/s

View exact numbers

Test name	Executions per second
✓ Javascript Set intersection (new feature) (smaller set first)	1,720,665 Ops/sec
Javascript Set intersection (new feature) (larger set first)	1,613,542 Ops/sec
Javascript Set intersection (smaller set first)	317,654 Ops/sec
Lodash intersection	201,605 Ops/sec
Javascript Set intersection (new feature) (smaller set first) (with set init time)	171,541 Ops/sec
Javascript Set intersection (larger set first)	69,479 Ops/sec
Javascript Array intersection	68,214 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)