Run results for: Array isArray vs instanceof

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 16_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/111.0.5563.101 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 111

Operating system: iOS 16.3

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
Instanceof	5484011.5 Ops/sec
isArray	5539655.0 Ops/sec

Script Preparation code:

var test = [1,2,3,4];
var c;

Tests:

Instanceof
if (test instanceof Array) { c++; }
isArray
if (Array.isArray(test)) { c++; }

Run results for: Array isArray vs instanceof

Instanceof

isArray