Run results for: Large Array: concat vs spread vs push

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Browser: Chrome 130

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 5 months ago

Script Preparation code:

var arr1 = Array.from(Array(1000).keys());

AخA
 
var arr1 = Array.from(Array(1000).keys());

Tests:

Concat
var arr = []; arr = arr.concat(arr1);
var arr = [];
arr = arr.concat(arr1);
Spread
var arr = []; arr = [...arr, ...arr1];
var arr = [];
arr = [...arr, ...arr1];
Push
var arr = []; arr.push(...arr1);
var arr = [];
arr.push(...arr1);