Run results for: Array isArray vs instanceof

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:133.0) Gecko/20100101 Firefox/133.0

Browser: Firefox 133

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Instanceof

73.6M/s

isArray

72.8M/s

View exact numbers

Test name	Executions per second
✓ Instanceof	73,646,616 Ops/sec
isArray	72,769,624 Ops/sec

Script Preparation code:

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

Tests: