Run results for: Array slice.forEach vs for loop

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_1_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.1.1 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 18

Operating system: iOS 18.1.1

Device Platform: Mobile

Date tested: one year ago

push

147.8M/s

slice

48.3M/s

View exact numbers

Test name	Executions per second
✓ push	147,804,816 Ops/sec
slice	48,349,800 Ops/sec

Script Preparation code:

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

Tests:

slice
data.slice(3, 8).forEach(x => x + 1);
push
for (var i = 3; i < 8; i++) { data[i] + i }