Run results for: Array isArray vs instanceof

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:134.0) Gecko/20100101 Firefox/134.0

Browser: Firefox 134

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

isArray

183.0M/s

Instanceof

176.9M/s

View exact numbers

Test name	Executions per second
✓ isArray	183,026,080 Ops/sec
Instanceof	176,921,408 Ops/sec

Script Preparation code:

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

Tests: