Run results for: Array.prototype.splice vs spread operator

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36

Browser: Chrome 90

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Array.prototype.slice	5227618.5 Ops/sec
spread operator	7236072.0 Ops/sec

Tests:

Array.prototype.slice
var original = [0,1,2,3,4,5,7,8,9,10,12]; original.splice(6,0,6).splice(11, 0, 11);
spread operator
var original = [0,1,2,3,4,5,7,8,9,10,12]; original = [...original.slice(0, 6), 6, ...original.slice(6, 11), 11, original[12]];