Run results for: underscore _.uniq vs [...new Set()]

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Browser: Chrome 130

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

_.uniq(arr);

4K/s

[...new Set(arr)]

2K/s

View exact numbers

Test name	Executions per second
✓ _.uniq(arr);	4,166 Ops/sec
[...new Set(arr)]	2,163 Ops/sec

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.13.7/underscore-min.js'></script>

Script Preparation code:


const arr = new Array(100_000).fill(1).fill(2, 50_000)

Tests: