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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:136.0) Gecko/20100101 Firefox/136.0

Browser: Firefox 136

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: one year ago

slice

36.6M/s

push

7.9M/s

View exact numbers

Test name	Executions per second
✓ slice	36,620,480 Ops/sec
push	7,887,572 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]; }