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 6.3; Win64; x64; rv:65.0) Gecko/20100101 Firefox/65.0
Firefox 65
Windows 8.1
Desktop
one year ago
Test name Executions per second
undefined 101372264.0 Ops/sec
typeof 261686080.0 Ops/sec
in 135879648.0 Ops/sec
hasOwnProperty 139723904.0 Ops/sec
bool 267359040.0 Ops/sec
Script Preparation code:
Tests:

  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool

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