Run results for: uniqBy vs uniqByFindIndex

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
uniqBy	113837.7 Ops/sec
uniqByFindIndex	633522.4 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: 200}, () => ({id: Math.floor(Math.random() * 40)}));

var myCopy = null;

Tests:

uniqBy
myCopy = _.uniqBy(myArr, 'id');
uniqByFindIndex
myCopy = myCopy.filter( (dependentNode, index, dependentNodesArr) => dependentNodesArr.findIndex( (currentNode) => currentNode.id === dependentNode.id ) === index )