MeasureThat.net

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

Object lookup performance

Go to the benchmark
Run details:
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0
Firefox 68
Linux
Desktop
5 years ago
Test name Executions per second
undefined 134923584.0 Ops/sec
typeof 335042176.0 Ops/sec
in 187584976.0 Ops/sec
hasOwnProperty 227366480.0 Ops/sec
bool 349468928.0 Ops/sec
Script Preparation code:
Tests:

  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool

;