Run results for: Array 2000 spread vs concat

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Browser: Chrome 122

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Script Preparation code:

var a = Array.from({ length: 2000 }, (_, index) => index);
var b = Array.from({ length: 2000 }, (_, index) => 2000 - index);

AخA
 
var a = Array.from({ length: 2000 }, (_, index) => index);var b = Array.from({ length: 2000 }, (_, index) => 2000 - index);

Tests:

Spread
const spread = [...a, ...b];
const spread = [...a, ...b];
Concat
const concat = a.concat(b);
const concat = a.concat(b);
Concat from empty
const concatEmpty = [].concat(a).concat(b);
const concatEmpty = [].concat(a).concat(b);