前端 获取浏览器版本、类型等信息

console.log(navigator);

打印：

1. Navigator {vendorSub: "", productSub: "", vendor: ".", maxTouchPoints: , hardwareConcurrency: , …}
   1. appCodeName: 
   2. appName:
   3. appVersion: 
   4. budget: 
   5. clipboard:
   6. connection: 
   7. credentials: 
   8. deviceMemory: 
   9. doNotTrack: 
   10. geolocation: 
   11. hardwareConcurrency: 
   12. keyboard: 
   13. language: 
   14. languages: 
   15. locks:
   16. maxTouchPoints: 
   17. mediaCapabilities: 
   18. mediaDevices: 
   19. mimeTypes: 
   20. permissions:
   21. platform: 
   22. plugins:
   23. presentation: 
   24. product: 
   25. productSub: 
   26. serviceWorker: 
   27. storage: 
   28. usb: 
   29. userAgent:
   30. vendor: 
   31. vendorSub: 
   32. webkitPersistentStorage: 
   33. webkitTemporaryStorage: