Benchmark: Array Intersection vs. Set Intersection vs. Lodash part 3_final_final

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(10000)].map(it => ~~(Math.random() * 100000));
var second = [...Array(10000)].map(it => ~~(Math.random() * 100000));

Tests:

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

Rendered benchmark preparation results:

Previous results

Test case name	Result
Javascript Set intersection
Lodash intersection
Javascript Array intersection

Latest run results:

Run details: (Test run date: one year ago)

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/OS: Chrome 135 on Mac OS X 10.15.7

Javascript Set intersection

2K/s

Javascript Array intersection

1K/s

Lodash intersection

663/s

View exact numbers

Test name	Executions per second
✓ Javascript Set intersection	1,619 Ops/sec
Javascript Array intersection	1,166 Ops/sec
Lodash intersection	663 Ops/sec

Array Intersection vs. Set Intersection vs. Lodash part 3_final_final (version: 1)