Run results for: instanceof Array vs Array.isArray

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.164 Safari/537.36 OPR/77.0.4054.277

Browser: Opera 77

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
instanceof Array	959483.1 Ops/sec
isArray	950643.6 Ops/sec

Script Preparation code:

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

Tests: