Run details:
Mozilla/5.0 (Linux; Android 7.1.1; SAMSUNG SM-J510FN/J510FNXXS3BTIC) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/18.0 Chrome/99.0.4844.88 Mobile Safari/537.36
Chrome Mobile 99
Android 7.1.1
Mobile
2 years ago
Test name Executions per second
Lodash 11.0 Ops/sec
Native 25.7 Ops/sec
HTML Preparation code:
x
 
1
2
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
Script Preparation code:
 
var max2 = 100000;
var data = [];
for (var i = 0; i <= max2; i++) { data.push({ id: i }); }
Tests:
  • Lodash

     
    _.groupBy(data, ({ id }) => id)
  • Native

     
    data.reduce((acc, item) => {
            acc[item.id] = item;
            return acc;
    }, {})