MeasureThat.net

Run results for: undefined vs. typeof vs. in vs. hasOwnProperty vs Object.hasOwn

Object lookup performance

Go to the benchmark
Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36
Chrome 109
Windows
Desktop
one year ago
Test name Executions per second
undefined 10476145.0 Ops/sec
typeof 28099678.0 Ops/sec
in 28210820.0 Ops/sec
hasOwnProperty 26033190.0 Ops/sec
bool 27998998.0 Ops/sec
hasOwn 9939879.0 Ops/sec
Script Preparation code:
Tests:

  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool

  • hasOwn

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