Run results for: Lodash uniqBy vs Native

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36 Edg/130.0.0.0

Browser: Chrome 130

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

native

240K/s

lodash

215K/s

View exact numbers

Test name	Executions per second
✓ native	240,451 Ops/sec
lodash	215,131 Ops/sec

HTML Preparation code:

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

Tests:

lodash
const x = [{id: 1}, {id: 1}, {id: 2}, {id: 3}]; const y = _.uniqBy(x, 'id'); console.log(y);
native
const x = [{id: 1}, {id: 1}, {id: 2}, {id: 3}]; const y = x.reduce((arr, curr) => { const found = arr.find(a => a.id === curr.id); if (!found) arr.push(curr); return arr; }, []); console.log(y)