Script Preparation code:
AخA
 
var obj = { a: 1, b: 2, c: 3, d: 4, e: 5 };
Tests:
  • in

     
    'd' in obj;
  • hasOwn

     
    Object.hasOwn(obj, 'd');
Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Experimental features:

  • Test case name Result
    in
    hasOwn

    Fastest: N/A

    Slowest: N/A

Latest run results:
Run details: (Test run date: 3 months ago)
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Chrome 131 on Linux
View result in a separate tab
Test name Executions per second
in 39433436.0 Ops/sec
hasOwn 20501648.0 Ops/sec