Run results for: Lodash union vs new Set() union

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Lodash union

3.9M/s

new Set() union

2.9M/s

View exact numbers

Test name	Executions per second
✓ Lodash union	3,862,328 Ops/sec
new Set() union	2,896,312 Ops/sec

HTML Preparation code:

<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/lodash@4.17.10/lodash.min.js"></script>

Script Preparation code:

const a = [1, 2, 3, 4, 5]
const b = [3, 4, 5, 6, 7]

Tests:

Lodash union
const c = _.union(a, b)
new Set() union
const setA = new Set(a) const setB = new Set(b) const c = setA.union(setB)