Run results for: Array isArray vs instanceof

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:121.0) Gecko/20100101 Firefox/121.0

Browser: Firefox 121

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Instanceof

38.1M/s

isArray

32.8M/s

View exact numbers

Test name	Executions per second
✓ Instanceof	38,136,728 Ops/sec
isArray	32,761,084 Ops/sec

Script Preparation code:

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

Tests: