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; Ubuntu; Linux x86_64; rv:66.0) Gecko/20100101 Firefox/66.0
Firefox 66
Ubuntu
Desktop
4 years ago
Test name Executions per second
undefined 94530920.0 Ops/sec
typeof 251567824.0 Ops/sec
in 161441920.0 Ops/sec
hasOwnProperty 159125024.0 Ops/sec
bool 250195104.0 Ops/sec
Script Preparation code:
Tests:

  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool

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