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Run results for:
Object.assign vs spread vs _.extend on big data
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=514349" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36
Browser:
Chrome 122
Operating system:
Windows
Device Platform:
Desktop
Date tested:
2 years ago
Test name
Executions per second
Object.assign
8497660.0 Ops/sec
spread operator
613191.7 Ops/sec
_.extend
3269.9 Ops/sec
HTML Preparation code:
<script src="https://underscorejs.org/underscore-min.js"></script>
Script Preparation code:
var params = Array(10000).fill().map((_, i) => i).reduce((acc, v) => { console.log(v) acc[v] = {vafsd: v}; return acc }, {});
Tests:
Object.assign
var other = Object.assign(params);
spread operator
var other = { ...params };
_.extend
var other = _.extend({ a: 2 }, params);