Run results for: Slice vs splice

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.5 Safari/605.1.15 Dash/5.5.1 Xcode/8.3.3

Browser: Safari 13

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Splice	4445019.0 Ops/sec
Slice	2841483.0 Ops/sec

Script Preparation code:

var arrayOne = [1, 3, 5, 11, 13];
var index = arrayOne.indexOf(5);

Tests:

Splice
arrayOne.splice(index, 1);
Slice
[...arrayOne.slice(0, index), ...arrayOne.slice(index+1) ]

Run results for: Slice vs splice

Splice

Slice