Run results for: Lodash vs. Set Intersection test123

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36

Browser: Chrome 134

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Lodash intersection

21K/s

Javascript Set intersection

16K/s

View exact numbers

Test name	Executions per second
✓ Lodash intersection	21,437 Ops/sec
Javascript Set intersection	16,472 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:

const generateRandomArray = (size = 1000, min = 1, max = 1000) =>
  Array.from({ length: size }, () =>
    Math.floor(Math.random() * (max - min + 1)) + min
  );

var first = generateRandomArray();
var second = generateRandomArray();

Tests:

Javascript Set intersection
const firstSet = new Set(first); const secondSet = new Set(second); new Set([...firstSet].filter(item => secondSet.has(item)));
Lodash intersection
_.intersection(first, second)