1. ECMAScript 5

    Full support for the ECMAScript 5 specification. Features include `Function.prototype.bind`, Array methods like `indexOf`, `forEach`, `map` & `filter`, Object methods like `defineProperty`, `create` & `keys`, the `trim` method on Strings and many more.

  2. Passkeys

    Passkeys, also known as Multi-device FIDO Credentials, provide users with an alternative to passwords that is much easier to use and far more secure.

  3. audioparammap api: keys

  4. cachestorage api: keys

  5. cache api: keys

  6. cssnumericarray api: keys

  7. csstransformvalue api: keys

  8. cssunparsedvalue api: keys

  9. customstateset api: keys

  10. domtokenlist api: keys

  11. eventcounts api: keys

  12. filesystemdirectoryhandle api: keys

  13. fontfaceset api: keys

  14. formdata api: keys

  15. gpusupportedfeatures api: keys

  16. headers api: keys

  17. highlightregistry api: keys

  18. highlight api: keys

  19. idbcursor api: key: binary keys

  20. keyboardevent api: key: non-printable keys

  21. keyboardevent api: key: printable keys

  22. keyboardlayoutmap api: keys

  23. mediakeys api

  24. mediakeysession api

  25. mediakeysession api: close

  26. mediakeysession api: load

  27. mediakeystatusmap api

  28. mediakeystatusmap api: get

  29. mediakeystatusmap api: has

  30. mediakeysystemaccess api

  31. midiinputmap api: keys

  32. midioutputmap api: keys

  33. nodelist api: keys

  34. paymentinstruments api: `keys()`

  35. rtcstatsreport api: keys

  36. storagebucketmanager api: keys

  37. stylepropertymapreadonly api: keys

  38. urlsearchparams api: keys

  39. wgsllanguagefeatures api: keys

  40. workletsharedstorage api: keys

  41. xranchorset api: keys

  42. xrhand api: keys

  43. xrinputsourcearray api: keys

  44. javascript built-in: array: keys

  45. javascript built-in: map: keys

  46. javascript built-in: object: keys

  47. javascript built-in: set: keys

  48. javascript built-in: typedarray: keys

  49. javascript built-in: weakmap: non-registered symbols as keys

  50. javascript built-in: weakset: non-registered symbols as keys