Run results for: ramda merge vs object.assign vs spread

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.164 Safari/537.36 OPR/77.0.4054.277

Browser: Opera 77

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Ramda merge	7037955.5 Ops/sec
object.assign	10297467.0 Ops/sec
spread	4178625.8 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/ramda/0.26.1/ramda.min.js'></script>

Tests:

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

Run results for: ramda merge vs object.assign vs spread

Ramda merge

object.assign

spread