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 6.1; Win64; x64; rv:79.0) Gecko/20100101 Firefox/79.0
Firefox 79
Windows 7
Desktop
4 years ago
Test name Executions per second
undefined 93920592.0 Ops/sec
typeof 219264864.0 Ops/sec
in 141409808.0 Ops/sec
hasOwnProperty 141567472.0 Ops/sec
bool 222352192.0 Ops/sec
Script Preparation code:
Tests:

  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool

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