MeasureThat.net

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

Object lookup performance

Go to the benchmark
Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
Chrome 97
Windows
Desktop
2 years ago
Test name Executions per second
undefined 4906870.0 Ops/sec
typeof 12900414.0 Ops/sec
in 12776914.0 Ops/sec
hasOwnProperty 11837059.0 Ops/sec
bool 12895552.0 Ops/sec
Optional chaining 4879955.0 Ops/sec
Script Preparation code:
Tests:

  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool

  • Optional chaining

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