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Run results for:
JS object merge testing
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Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36
Browser:
Chrome 134
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
object.assign
52.3M/s
spread
38.6M/s
lodash assign
16.6M/s
lodash merge
11.2M/s
View exact numbers
Test name
Executions per second
✓
object.assign
52,315,848 Ops/sec
spread
38,602,220 Ops/sec
lodash assign
16,550,692 Ops/sec
lodash merge
11,168,914 Ops/sec
HTML Preparation code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.min.js'></script>
Script Preparation code:
var a = { a: 'oh', b: 'my' }; var b = { c: 'goddess' };
Tests:
lodash merge
var c = _.merge(a, b);
object.assign
var c = Object.assign(a, b);
spread
var c = { ...a, ...b };
lodash assign
var c = _.assign(a, b);