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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36

Browser: Chrome 125

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Javascript Set intersection

4.3M/s

Lodash intersection

601K/s

Javascript Array intersection

265K/s

View exact numbers

Test name	Executions per second
✓ Javascript Set intersection	4,343,138 Ops/sec
Lodash intersection	600,762 Ops/sec
Javascript Array intersection	265,218 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
new Set(firstSet.intersection(secondSet));
Lodash intersection
_.intersection(first, second)
Javascript Array intersection
first.filter(it => second.includes(it))