Run details:
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0
Firefox 60
Ubuntu
Desktop
6 years ago
Test name Executions per second
undefined 72248064.0 Ops/sec
typeof 212611840.0 Ops/sec
in 106088448.0 Ops/sec
hasOwnProperty 131010112.0 Ops/sec
bool 193075616.0 Ops/sec
Script Preparation code:
Tests:
  • undefined

  • typeof

  • in

  • hasOwnProperty

  • bool


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