在此页

• 句法
• 范例
• 注意事项
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

Window.confirm() method displays a modal dialog with an optional message and two buttons: OK and Cancel.

句法

result = window.confirm(message);
					

参数

message

A string you want to display in the alert dialog.

返回值

A boolean indicating whether OK ( true ) or Cancel ( false ) was selected. If a browser is ignoring in-page dialogs, then the returned value is always false .

范例

if (window.confirm("Do you really want to leave?")) {
  window.open("exit.html", "Thanks for Visiting!");
}
					

Produces:

注意事项

The following text is shared between this article, DOM:window.prompt and DOM:window.alert Dialog boxes are modal windows — they prevent the user from accessing the rest of the program's interface until the dialog box is closed. For this reason, you should not overuse any function that creates a dialog box (or modal window). Regardless, there are good reasons to avoid using dialog boxes for confirmation .

规范

规范	状态	注释
HTML 实时标准 The definition of 'confirm()' in that specification.	实时标准

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
confirm	Chrome 1 1 Starting with Chrome 46, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals .	Edge 12	Firefox 1	IE 4	Opera 3 3 Starting with Opera 33, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals .	Safari 1	WebView Android 1 1 Starting with Chrome 46, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals .	Chrome Android 18 18 Starting with Chrome 46, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals .	Firefox Android 4	Opera Android 10.1 10.1 Starting with Opera 33, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals .	Safari iOS 1	Samsung Internet Android 1.0 1.0 Starting with Samsung Internet 5.0, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals .

图例

完整支持

完整支持

见实现注意事项。

另请参阅

• window.alert()
• window.prompt()

元数据

• 最后修改： Aug 22, 2020

相关话题

1. Window
2. 特性

   1. applicationCache
   2. caches
   3. closed
   4. console
   5. controllers
   6. crossOriginIsolated
   7. crypto
   8. customElements
   9. defaultStatus
   10. devicePixelRatio
   11. dialogArguments
   12. 目录
   13. document
   14. event
   15. frameElement
   16. frames
   17. fullScreen
   18. history
   19. indexedDB
   20. innerHeight
   21. innerWidth
   22. isSecureContext
   23. isSecureContext
   24. length
   25. localStorage
   26. location
   27. locationbar
   28. menubar
   29. mozAnimationStartTime
   30. mozInnerScreenX
   31. mozInnerScreenY
   32. mozPaintCount
   33. 名称
   34. navigator
   35. onabort
   36. onafterprint
   37. onanimationcancel
   38. onanimationend
   39. onanimationiteration
   40. onappinstalled
   41. onauxclick
   42. onbeforeinstallprompt
   43. onbeforeprint
   44. onbeforeunload
   45. onblur
   46. oncancel
   47. oncanplay
   48. oncanplaythrough
   49. onchange
   50. onclick
   51. onclose
   52. oncontextmenu
   53. oncuechange
   54. ondblclick
   55. ondevicelight
   56. ondevicemotion
   57. ondeviceorientation
   58. ondeviceorientationabsolute
   59. ondeviceproximity
   60. ondragdrop
   61. ondurationchange
   62. onended
   63. onerror
   64. onfocus
   65. onformdata
   66. ongamepadconnected
   67. ongamepaddisconnected
   68. ongotpointercapture
   69. onhashchange
   70. oninput
   71. oninvalid
   72. onkeydown
   73. onkeypress
   74. onkeyup
   75. onlanguagechange
   76. onload
   77. onloadeddata
   78. onloadedmetadata
   79. onloadend
   80. onloadstart
   81. onlostpointercapture
   82. onmessage
   83. onmessageerror
   84. onmousedown
   85. onmouseenter
   86. onmouseleave
   87. onmousemove
   88. onmouseout
   89. onmouseover
   90. onmouseup
   91. onmozbeforepaint
   92. onpaint
   93. onpause
   94. onplay
   95. onplaying
   96. onpointercancel
   97. onpointerdown
   98. onpointerenter
   99. onpointerleave
   100. onpointermove
   101. onpointerout
   102. onpointerover
   103. onpointerup
   104. onpopstate
   105. onrejectionhandled
   106. onreset
   107. onresize
   108. onscroll
   109. onselect
   110. onselectionchange
   111. onselectstart
   112. onstorage
   113. onsubmit
   114. ontouchcancel
   115. ontouchstart
   116. ontransitioncancel
   117. ontransitionend
   118. onunhandledrejection
   119. onunload
   120. onuserproximity
   121. onvrdisplayactivate
   122. onvrdisplayblur
   123. onvrdisplayconnect
   124. onvrdisplaydeactivate
   125. onvrdisplaydisconnect
   126. onvrdisplayfocus
   127. onvrdisplaypointerrestricted
   128. onvrdisplaypointerunrestricted
   129. onvrdisplaypresentchange
   130. onwheel
   131. opener
   132. origin
   133. outerHeight
   134. outerWidth
   135. pageXOffset
   136. pageYOffset
   137. parent
   138. 性能
   139. personalbar
   140. pkcs11
   141. screen
   142. screenLeft
   143. screenTop
   144. screenX
   145. screenY
   146. scrollbars
   147. scrollMaxX
   148. scrollMaxY
   149. scrollX
   150. scrollY
   151. self
   152. sessionStorage
   153. sidebar
   154. speechSynthesis
   155. status
   156. statusbar
   157. toolbar
   158. top
   159. visualViewport
   160. window
3. 方法

   1. alert()
   2. atob()
   3. back()
   4. blur()
   5. btoa()
   6. cancelAnimationFrame()
   7. cancelIdleCallback()
   8. captureEvents()
   9. clearImmediate()
   10. clearInterval()
   11. clearTimeout()
   12. close()
   13. confirm()
   14. convertPointFromNodeToPage()
   15. convertPointFromPageToNode
   16. createImageBitmap()
   17. dump()
   18. fetch()
   19. find()
   20. focus()
   21. forward()
   22. getAttention()
   23. getComputedStyle()
   24. getDefaultComputedStyle()
   25. getSelection()
   26. home()
   27. matchMedia()
   28. minimize()
   29. moveBy()
   30. moveTo()
   31. open()
   32. openDialog()
   33. postMessage()
   34. print()
   35. prompt()
   36. queueMicrotask()
   37. releaseEvents()
   38. requestAnimationFrame()
   39. requestFileSystem()
   40. requestIdleCallback()
   41. resizeBy()
   42. resizeTo()
   43. restore()
   44. routeEvent()
   45. scroll()
   46. scrollBy()
   47. scrollByLines()
   48. scrollByPages()
   49. scrollTo()
   50. setCursor()
   51. setImmediate()
   52. setInterval()
   53. setTimeout()
   54. showModalDialog()
   55. sizeToContent()
   56. stop()
   57. updateCommands()
4. 事件

   1. event
   2. afterprint
   3. animationcancel
   4. animationend
   5. animationiteration
   6. beforeprint
   7. beforeunload
   8. blur
   9. copy
   10. cut
   11. DOMContentLoaded
   12. error
   13. focus
   14. hashchange
   15. languagechange
   16. load
   17. message
   18. messageerror
   19. offline
   20. online
   21. orientationchange
   22. pagehide
   23. pageshow
   24. paste
   25. popstate
   26. rejectionhandled
   27. storage
   28. transitioncancel
   29. unhandledrejection
   30. unload
   31. vrdisplayconnect
   32. vrdisplaydisconnect
   33. vrdisplaypresentchange