Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.5 Safari/605.1.15
Safari 13
Mac OS X 10.15.3
Desktop
4 years ago
Test name Executions per second
isFunction 2793790.8 Ops/sec
typeof function 5992475.0 Ops/sec
instanceof 3083869.0 Ops/sec
wrapped typeof function (like optimized _.isFunction) 3178042.0 Ops/sec
HTML Preparation code:
Script Preparation code:
Tests:
  • isFunction

  • typeof function

  • instanceof

  • wrapped typeof function (like optimized _.isFunction)