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Run results for:
lodash groupBy vs Array.reduce 100k
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Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64; rv:135.0) Gecko/20100101 Firefox/135.0
Browser:
Firefox 135
Operating system:
Linux
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Lodash
493.3 Ops/sec
Native
1266.4 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 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; }, {})