Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.3 Safari/605.1.15
Safari 15
Mac OS X 10.15.7
Desktop
2 years ago
Test name Executions per second
instanceof 5131574.5 Ops/sec
string type 12689140.0 Ops/sec
string type + undefined 3955343.5 Ops/sec
property 3892533.5 Ops/sec
HTML Preparation code:
Script Preparation code:
Tests:
  • instanceof

  • string type

  • string type + undefined

  • property