MeasureThat.net

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

Object lookup performance

Go to the benchmark
Run details:
Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0
Firefox 78
Linux
Desktop
4 years ago
Test name Executions per second
undefined 200429504.0 Ops/sec
typeof 444547776.0 Ops/sec
in 317905312.0 Ops/sec
hasOwnProperty 322741184.0 Ops/sec
bool 451669216.0 Ops/sec
Script Preparation code:
Tests:

  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool

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