MeasureThat.net

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

Object lookup performance

Go to the benchmark
Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0
Firefox 115
Windows
Desktop
one year ago
Test name Executions per second
undefined 665327680.0 Ops/sec
typeof 707987008.0 Ops/sec
in 690491776.0 Ops/sec
hasOwnProperty 708606656.0 Ops/sec
bool 710201664.0 Ops/sec
Script Preparation code:
Tests:

  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool

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