Run results for: Array isArray vs instanceof

Run details:

User agent: Mozilla/5.0 (Android 13; Mobile; rv:133.0) Gecko/133.0 Firefox/133.0

Browser: Firefox Mobile 133

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Instanceof

41.6M/s

isArray

40.8M/s

View exact numbers

Test name	Executions per second
✓ Instanceof	41,604,988 Ops/sec
isArray	40,790,376 Ops/sec

Script Preparation code:

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

Tests: