Run results for: arr.push(item) && arr vs [...arr, item]

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36 Edg/87.0.664.66

Browser: Chrome 87

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
arr.push(item) && arr	44737170.0 Ops/sec
[...arr, item]	27469170.0 Ops/sec

Tests: