Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:49.0) Gecko/20100101 Firefox/49.0
Firefox 49
Mac OS X 10.14
Desktop
5 years ago
Test name Executions per second
isFunction 20970890.0 Ops/sec
typeof function 1789527040.0 Ops/sec
instanceof 221970208.0 Ops/sec
HTML Preparation code:
Tests:
  • isFunction

  • typeof function

  • instanceof