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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36

Browser: Chrome 135

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

slice

47.4M/s

push

37.0M/s

View exact numbers

Test name	Executions per second
✓ slice	47,407,388 Ops/sec
push	37,015,884 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]; }