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

Run details:

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

Browser: Chrome 86

Operating system: Mac OS X 10.15.5

Device Platform: Desktop

Date tested: 4 years ago

HTML Preparation code:

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

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

var c = { ...{ a: 'oh', b: 'my' }, c: 'goddess' };

 
var c = { ...{ a: 'oh', b: 'my' }, c: 'goddess' };