Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.5 Safari/605.1.15
Safari 17
Mac OS X 10.15.7
Desktop
5 months ago
Test name Executions per second
instanceof 17169084.0 Ops/sec
string type 40547272.0 Ops/sec
string type + undefined 14466069.0 Ops/sec
property 14329931.0 Ops/sec
constructor comparison 17310200.0 Ops/sec
HTML Preparation code:
Script Preparation code:
Tests:
  • instanceof

  • string type

  • string type + undefined

  • property

  • constructor comparison