Run results for: Uniq by vs Set

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Browser: Chrome 97

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
UniqBy	3449858.2 Ops/sec
Set	3928416.5 Ops/sec

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Tests:

UniqBy
const a = [{a:1},{a:1},{a:1},{a:2},{a:2},{a:3}] const uniques = _.uniqBy(a, 'a')
Set
const a = [{a:1},{a:1},{a:1},{a:2},{a:2},{a:3}] const uniques = []; const set = new Set(); for (const e of a) { if(!set.has(e.a)) { uniques.push(e); set.add(e.a); } }