undefined vs typeof vs in vs hasOwnProperty vs bool (version: 1)

Object lookup performance

Comparing performance of: undefined vs typeof vs in vs hasOwnProperty vs bool vs Object.hasOwnProperty vs optional chaining undefined

Created: one year ago by: Guest
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Script Preparation code:
Tests:
Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results
  • Test case name Result
    undefined
    typeof
    in
    hasOwnProperty
    bool
    Object.hasOwnProperty
    optional chaining undefined

    Fastest: N/A

    Slowest: N/A

Latest run results:
Run details: (Test run date: one year ago)
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36 Edg/136.0.0.0
Chrome 136 on Windows
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in
127.7M/s
typeof
126.1M/s
optional chaining undefined
123.2M/s
undefined
120.2M/s
bool
106.7M/s
hasOwnProperty
79.1M/s
Object.hasOwnProperty
66.3M/s
View exact numbers
Test name Executions per second
✓ in 127,650,680 Ops/sec
typeof 126,078,144 Ops/sec
optional chaining undefined 123,192,248 Ops/sec
undefined 120,160,184 Ops/sec
bool 106,656,024 Ops/sec
hasOwnProperty 79,064,760 Ops/sec
Object.hasOwnProperty 66,343,560 Ops/sec

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