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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36

Browser: Chrome 135

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Native Set intersection

6.3M/s

Javascript Array intersection

790K/s

Lodash intersection

455K/s

View exact numbers

Test name	Executions per second
✓ Native Set intersection	6,255,160 Ops/sec
Javascript Array intersection	790,458 Ops/sec
Lodash intersection	454,897 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));
const firstSet = new Set(first);
const secondSet = new Set(second);

Tests:

Lodash intersection
_.intersection(first, second)
Javascript Array intersection
first.filter(it => second.includes(it))
Native Set intersection
firstSet.intersection(secondSet);