Run results for: isArray vs length

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Check object.length

11.1M/s

Array.isArray

11.0M/s

View exact numbers

Test name	Executions per second
✓ Check object.length	11,109,810 Ops/sec
Array.isArray	10,978,339 Ops/sec

Script Preparation code:

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

Tests: