Run results for: Array isArray vs instanceof

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:148.0) Gecko/20100101 Firefox/148.0

Browser: Firefox 148

Operating system: Windows

Device Platform: Desktop

Date tested: 5 months ago

Instanceof

35.1M/s

isArray

20.2M/s

View exact numbers

Test name	Executions per second
✓ Instanceof	35,069,208 Ops/sec
isArray	20,190,894 Ops/sec

Script Preparation code:

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

Tests: