MeasureThat.net

Run results for: undefined vs. typeof vs. in vs. hasOwnProperty vs. Void 0

Object lookup performance

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Run details:
Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.51 Safari/537.36
Chrome 99
Windows 7
Desktop
2 years ago
Test name Executions per second
undefined 3212059.8 Ops/sec
typeof 8602970.0 Ops/sec
in 8658614.0 Ops/sec
hasOwnProperty 7819593.0 Ops/sec
bool 8459865.0 Ops/sec
Void 8645230.0 Ops/sec
Script Preparation code:
Tests:

  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool

  • Void