Run results for: Array isArray vs instanceof

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:137.0) Gecko/20100101 Firefox/137.0

Browser: Firefox 137

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

isArray

133.0M/s

Instanceof

130.2M/s

View exact numbers

Test name	Executions per second
✓ isArray	133,006,720 Ops/sec
Instanceof	130,165,728 Ops/sec

Script Preparation code:

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

Tests: