Benchmark Run Result for: lodash merge vs object.assign vs spread (no intermediate vars)

lodash merge vs object.assign vs spread (no intermediate vars)

Date tested: 3 years ago

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4186.0 Safari/537.36

Test name	Executions per second
lodash merge	2647034.0 Ops/sec
object.assign	5045270.0 Ops/sec
spread	1758505.0 Ops/sec

Benchmark definition (click to collapse):

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Tests:

lodash merge
var c = _.merge({ a: 'oh', b: 'my' }, { c: 'goddess' });
object.assign
var c = Object.assign({ a: 'oh', b: 'my' }, { c: 'goddess' });
spread
var c = { ...{ a: 'oh', b: 'my' }, c: 'goddess' };

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