Run results for: object spread vs Object.assign

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36

Browser: Chrome 135

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

object spread

42.8M/s

Object.assign

12.9M/s

View exact numbers

Test name	Executions per second
✓ object spread	42,775,248 Ops/sec
Object.assign	12,861,979 Ops/sec

Script Preparation code:

var a = {a: 1}

Tests: