Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36
Chrome 139
Windows
Desktop
8 months ago
Test name Executions per second
instanceof 100553664.0 Ops/sec
typeof 124148936.0 Ops/sec
typeof no function 131283264.0 Ops/sec
Object.prototype.toString.call 76882104.0 Ops/sec
Object.prototype.toString.call reverse 76620160.0 Ops/sec
constructor 129590920.0 Ops/sec
costructor reverse 140114016.0 Ops/sec
costructor ?. 133867072.0 Ops/sec
constructor.name ?. 55054436.0 Ops/sec
constructor.name ?. reverse 52068700.0 Ops/sec
Script Preparation code:
Tests:
  • instanceof

  • typeof

  • typeof no function

  • Object.prototype.toString.call

  • Object.prototype.toString.call reverse

  • constructor

  • costructor reverse

  • costructor ?.

  • constructor.name ?.

  • constructor.name ?. reverse