Run results for: Lodash uniqBy vs Map destructuring

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; MI 8 Lite) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.127 Mobile Safari/537.36

Browser: Chrome Mobile 100

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
Lodash uniqBy	613.0 Ops/sec
new Map() Destructuring	493.8 Ops/sec

HTML Preparation code:

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

​x
 
​
<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
}, () => ({ someData: 123, value: Math.floor(Math.random() * 1000) }));

var myCopy = null;

 
var myArr = Array.from({    length: 16000}, () => ({ someData: 123, value: Math.floor(Math.random() * 1000) }));​var myCopy = null;

Tests:

Lodash uniqBy
myCopy = _.uniqBy(myArr, 'value').map(({ value }) => value);
myCopy = _.uniqBy(myArr, 'value').map(({ value }) => value);
new Map() Destructuring
myCopy = [...new Map(myArr.map((el) => [el.value, el])).values()];
myCopy = [...new Map(myArr.map((el) => [el.value, el])).values()];