在此页

• 句法
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

HTMLSelectElement.checkValidity() method checks whether the element has any constraints and whether it satisfies them. If the element fails its constraints, the browser fires a cancelable 无效 event at the element, and then returns false .

句法

var result = selectElt.checkValidity();
					

规范

规范	状态	注释
HTML 实时标准 The definition of 'HTMLSelectElement.checkValidity()' in that specification.	实时标准	无变化从最新快照起， HTML5 .
HTML5 The definition of 'HTMLSelectElement.checkValidity()' in that specification.	推荐	Initial definition, snapshot of HTML 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
checkValidity	Chrome 4	Edge 12	Firefox 4	IE 10	Opera 9	Safari 5	WebView Android ≤37	Chrome Android 18	Firefox Android 4	Opera Android 10.1	Safari iOS 4.2	Samsung Internet Android 1.0

图例

完整支持

完整支持

另请参阅

• Form validation

元数据

• 最后修改： 2019 年 3 月 23 日

相关话题

1. HTMLSelectElement
2. 特性

   1. autofocus
   2. 被禁用
   3. form
   4. labels
   5. 选项
   6. selectedIndex
   7. selectedOptions
   8. type
3. 方法

   1. add()
   2. checkValidity()
   3. item()
   4. namedItem()
   5. remove()
   6. setCustomValidity()
4. 继承：

   1. HTMLElement
   2. 元素
   3. 节点
   4. EventTarget
5. 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. HTMLShadowElement
   59. HTMLSourceElement
   60. HTMLSpanElement
   61. HTMLStyleElement
   62. HTMLTableCaptionElement
   63. HTMLTableCellElement
   64. HTMLTableColElement
   65. HTMLTableDataCellElement
   66. HTMLTableElement
   67. HTMLTableHeaderCellElement
   68. HTMLTableRowElement
   69. HTMLTableSectionElement
   70. HTMLTemplateElement
   71. HTMLTextAreaElement
   72. HTMLTimeElement
   73. HTMLTitleElement
   74. HTMLTrackElement
   75. HTMLUListElement
   76. HTMLUnknownElement
   77. HTMLVideoElement
   78. HashChangeEvent
   79. 历史
   80. ImageData
   81. 定位
   82. MessageChannel
   83. MessageEvent
   84. MessagePort
   85. Navigator
   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