MeasureThat.net

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

Object lookup performance

Go to the benchmark
Run details:
Mozilla/5.0 (Linux; Android 7.0; SM-G930F) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.96 Mobile Safari/537.36
Chrome Mobile 78
Android 7.0
Mobile
4 years ago
Test name Executions per second
undefined 1145050.1 Ops/sec
typeof 3464118.8 Ops/sec
in 3487572.8 Ops/sec
hasOwnProperty 3051956.2 Ops/sec
bool 3468612.2 Ops/sec
Script Preparation code:
Tests:

  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool

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