Run results for: Array isArray vs instanceof

Run details:

User agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0

Browser: Firefox 91

Operating system: Windows 8.1

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Instanceof	19067800.0 Ops/sec
isArray	14563480.0 Ops/sec

Script Preparation code:

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

Tests: