Run results for: instanceof Array vs Array.isArray

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36

Browser: Chrome 133

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

isArray

15.6M/s

instanceof Array

14.8M/s

View exact numbers

Test name	Executions per second
✓ isArray	15,638,039 Ops/sec
instanceof Array	14,836,868 Ops/sec

Script Preparation code:

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

Tests: