Run results for: isArray vs length

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:146.0) Gecko/20100101 Firefox/146.0

Browser: Firefox 146

Operating system: Windows

Device Platform: Desktop

Date tested: 4 months ago

Test name	Executions per second
Array.isArray	352865728.0 Ops/sec
Check object.length	2161383168.0 Ops/sec

Script Preparation code:

function myIsArray(obj){
  return obj.length > 0;
}

var isArray = Array.isArray

Tests: