Run results for: Array slice vs for loop

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_2_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/131.0.6778.154 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 131

Operating system: iOS 18.2.0

Device Platform: Mobile

Date tested: one year ago

slice

99.9M/s

push

68.8M/s

View exact numbers

Test name	Executions per second
✓ slice	99,937,664 Ops/sec
push	68,808,160 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 = []; for (var i = 3; i < 8; i++) { copy.push(data[i]) }