undefined vs. typeof vs. in vs. hasOwn (version: 1)

Object lookup performance

Comparing performance of: undefined vs typeof vs in vs hasOwn vs bool

Created: one year ago by: Guest
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Script Preparation code:
Tests:

  • undefined

  • typeof

  • in

  • hasOwn

  • bool

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results
  • Test case name Result
    undefined
    typeof
    in
    hasOwn
    bool

    Fastest: N/A

    Slowest: N/A

Latest run results:
Run details: (Test run date: one year ago)
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Mobile Safari/537.36
Chrome Mobile 131 on Android
View result in a separate tab
Test name Executions per second
undefined 37448980.0 Ops/sec
typeof 40375368.0 Ops/sec
in 35642988.0 Ops/sec
hasOwn 19054142.0 Ops/sec
bool 39150148.0 Ops/sec
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