Script Preparation code:
AخA
 
window.obj = undefined
Tests:
  • equality

     
    window.obj === undefined
  • typeof

     
    typeof window.obj === 'undefined'
  • double-equal

     
    window.obj == undefined
Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Experimental features:

  • Test case name Result
    equality
    typeof
    double-equal

    Fastest: N/A

    Slowest: N/A

Latest run results:
Run details: (Test run date: 10 months ago)
Mozilla/5.0 (Windows NT 10.0; rv:109.0) Gecko/20100101 Firefox/115.0
Firefox 115 on Windows
View result in a separate tab
Test name Executions per second
equality 5584100.0 Ops/sec
typeof 5586317.5 Ops/sec
double-equal 5638271.5 Ops/sec