在此页

• 句法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

安全上下文
此特征只可用于 安全上下文 (HTTPS)，在某些或所有 支持浏览器 .

Navigator.canShare() method of the Web Share API returns true if a call to navigator.share() would succeed.

句法

const canShare = navigator.canShare(data);
					

参数

data 可选

An object containing data to share that matches what you would pass to navigator.share() .

返回值

A 布尔 . True if data can be shared with Navigator.share() .

范例

if(navigator.canShare(data)) {
  // We can use share() to share the data! Woop!
}
					

规范

规范	状态	注释
Web Share API - Level 2 The definition of 'canShare' in that specification.	草案	初始定义。

浏览器兼容性

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
canShare	Chrome No	Edge No	Firefox No	IE No	Opera No	Safari No	WebView Android No	Chrome Android 75	Firefox Android No	Opera Android No	Safari iOS No	Samsung Internet Android 11.0

图例

完整支持

完整支持

不支持

不支持

另请参阅

navigator.share()

元数据

• 最后修改： Aug 31, 2020

相关话题

1. Navigator
2. 特性

   1. activeVRDisplays
   2. appCodeName
   3. appName
   4. appVersion
   5. battery
   6. buildID
   7. clipboard
   8. connection
   9. cookieEnabled
   10. credentials
   11. deviceMemory
   12. doNotTrack
   13. geolocation
   14. keyboard
   15. 语言
   16. languages
   17. locks
   18. maxTouchPoints
   19. mediaDevices
   20. mediaSession
   21. onLine
   22. oscpu
   23. permissions
   24. platform
   25. product
   26. productSub
   27. serviceWorker
   28. userAgent
   29. vendor
   30. vendorSub
   31. webdriver
   32. xr
3. 方法

   1. canShare()
   2. getBattery()
   3. getGamepads()
   4. getUserMedia()
   5. getVRDisplays()
   6. mozIsLocallyAvailable()
   7. msLaunchUri()
   8. registerContentHandler()
   9. registerProtocolHandler()
   10. requestMediaKeySystemAccess()
   11. sendBeacon()
   12. share()
   13. taintEnabled()
   14. vibrate()
4. HTML DOM 相关页面

   1. BeforeUnloadEvent
   2. DOMStringMap
   3. ErrorEvent
   4. GlobalEventHandlers
   5. HTMLAnchorElement
   6. HTMLAreaElement
   7. HTMLAudioElement
   8. HTMLBRElement
   9. HTMLBaseElement
   10. HTMLBaseFontElement
   11. HTMLBodyElement
   12. HTMLButtonElement
   13. HTMLCanvasElement
   14. HTMLContentElement
   15. HTMLDListElement
   16. HTMLDataElement
   17. HTMLDataListElement
   18. HTMLDialogElement
   19. HTMLDivElement
   20. HTMLDocument
   21. HTMLElement
   22. HTMLEmbedElement
   23. HTMLFieldSetElement
   24. HTMLFormControlsCollection
   25. HTMLFormElement
   26. HTMLFrameSetElement
   27. HTMLHRElement
   28. HTMLHeadElement
   29. HTMLHeadingElement
   30. HTMLHtmlElement
   31. HTMLIFrameElement
   32. HTMLImageElement
   33. HTMLInputElement
   34. HTMLIsIndexElement
   35. HTMLKeygenElement
   36. HTMLLIElement
   37. HTMLLabelElement
   38. HTMLLegendElement
   39. HTMLLinkElement
   40. HTMLMapElement
   41. HTMLMediaElement
   42. HTMLMetaElement
   43. HTMLMeterElement
   44. HTMLModElement
   45. HTMLOListElement
   46. HTMLObjectElement
   47. HTMLOptGroupElement
   48. HTMLOptionElement
   49. HTMLOptionsCollection
   50. HTMLOutputElement
   51. HTMLParagraphElement
   52. HTMLParamElement
   53. HTMLPictureElement
   54. HTMLPreElement
   55. HTMLProgressElement
   56. HTMLQuoteElement
   57. HTMLScriptElement
   58. HTMLSelectElement
   59. HTMLShadowElement
   60. HTMLSourceElement
   61. HTMLSpanElement
   62. HTMLStyleElement
   63. HTMLTableCaptionElement
   64. HTMLTableCellElement
   65. HTMLTableColElement
   66. HTMLTableDataCellElement
   67. HTMLTableElement
   68. HTMLTableHeaderCellElement
   69. HTMLTableRowElement
   70. HTMLTableSectionElement
   71. HTMLTemplateElement
   72. HTMLTextAreaElement
   73. HTMLTimeElement
   74. HTMLTitleElement
   75. HTMLTrackElement
   76. HTMLUListElement
   77. HTMLUnknownElement
   78. HTMLVideoElement
   79. HashChangeEvent
   80. 历史
   81. ImageData
   82. 定位
   83. MessageChannel
   84. MessageEvent
   85. MessagePort
   86. NavigatorGeolocation
   87. NavigatorID
   88. NavigatorLanguage
   89. NavigatorOnLine
   90. NavigatorPlugins
   91. PageTransitionEvent
   92. Plugin
   93. PluginArray
   94. PopStateEvent
   95. PortCollection
   96. PromiseRejectionEvent
   97. RadioNodeList
   98. Transferable
   99. ValidityState
   100. Window
   101. WindowBase64
   102. WindowEventHandlers
   103. WindowTimers