Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Firefox/68.0
Firefox 68
Windows
Desktop
5 years ago
Test name Executions per second
isFunction 25754066.0 Ops/sec
typeof function 889054464.0 Ops/sec
instanceof 148425168.0 Ops/sec
HTML Preparation code:
Tests:
  • isFunction

  • typeof function

  • instanceof