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JS object merge testing
(version: 1)
Comparing performance of:
lodash merge vs object.assign vs spread vs lodash assign
Created:
one year ago
by:
Registered User
Jump to the latest result
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);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (4)
Previous results
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Test case name
Result
lodash merge
object.assign
spread
lodash assign
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
5 months ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36 Edg/142.0.0.0
Browser/OS:
Chrome 142 on Windows
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Test name
Executions per second
lodash merge
15243019.0 Ops/sec
object.assign
58747392.0 Ops/sec
spread
33670116.0 Ops/sec
lodash assign
15387969.0 Ops/sec
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lodash 21 merge vs object.assign vs spread
lodash merge vs object.assign vs spread with empty object
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