Run results for: Array isArray vs instanceof

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_0_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.0 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 17

Operating system: iOS 17.0.1

Device Platform: Mobile

Date tested: 2 years ago

Instanceof

6.8M/s

isArray

6.5M/s

View exact numbers

Test name	Executions per second
✓ Instanceof	6,845,882 Ops/sec
isArray	6,533,269 Ops/sec

Script Preparation code:

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

Tests: