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Run results for:
Object.assign vs spread vs _.extend
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=514155" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:125.0) Gecko/20100101 Firefox/125.0
Browser:
Firefox 125
Operating system:
Windows
Device Platform:
Desktop
Date tested:
2 years ago
Test name
Executions per second
Object.assign
14645442.0 Ops/sec
spread operator
8912126.0 Ops/sec
_.extend
13538120.0 Ops/sec
HTML Preparation code:
<script src="https://underscorejs.org/underscore-min.js"></script>
Tests:
Object.assign
var params = { b:"hello", c: true, d:7 }; var other = Object.assign({ a: 2 }, params);
spread operator
var params = { b:"hello", c: true, d:7 }; var other = { a: 2, ...params };
_.extend
var params = { b:"hello", c: true, d:7 }; var other = _.extend({ a: 2 }, params);