Run results for: lodash vs map 5

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

Browser: Chrome 130

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Lodash uniqBy path

2K/s

Map

1K/s

View exact numbers

Test name	Executions per second
✓ Lodash uniqBy path	2,247 Ops/sec
Map	1,388 Ops/sec

HTML Preparation code:

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

Script Preparation code:

var myArr = Array.from({
    length: 16000
}, () => ({ value: Math.floor(Math.random() * 1000), val:  Math.floor(Math.random() * 1000) }));

var myCopy = null;

Tests:

Lodash uniqBy path
myCopy = _.uniqBy(myArr, val => val.toString());
Map
myCopy = [...new Map(myArr.map((obj) => [obj.toString(), obj])).values()];