Run results for: Array slice vs for loop (new Array)

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_6_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 17

Operating system: iOS 17.6.1

Device Platform: Mobile

Date tested: one year ago

slice

23.7M/s

push

4.0M/s

View exact numbers

Test name	Executions per second
✓ slice	23,736,516 Ops/sec
push	3,996,798 Ops/sec

Script Preparation code:

var data = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0];

Tests:

slice
var copy = data.slice(3, 8);
push
var copy = new Array(5); for (var i = 3; i < 8; i++) { copy[i] = data[i]; }