Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.102 Safari/537.36
Chrome 98
Mac OS X 10.15.7
Desktop
2 years ago
Test name Executions per second
Javascript Array.reduce/Array.indexOf 95853.1 Ops/sec
Lodash Uniq 268497.0 Ops/sec
HTML Preparation code:
AخA
 
1
<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.5/lodash.min.js"></script>
Script Preparation code:
 
var itemsCount = 1e2;
var items = Array.from({ length: itemsCount }, () => Math.floor(Math.random() * itemsCount));
Tests:
  • Javascript Array.reduce/Array.indexOf

     
    items.reduce((list, item) => list.indexOf(item) > -1 ? list : [...list, item], []);
  • Lodash Uniq

     
    _.uniq(items)