HTMLOptionElement

HTMLOptionElement interface represents <option> elements and inherits all classes and methods of the HTMLElement 接口。

特性

Inherits properties from its parent, HTMLElement .

HTMLOptionElement.defaultSelected
Boolean that contains the initial value of the selected HTML attribute, indicating whether the option is selected by default or not.
HTMLOptionElement.disabled
Boolean representing the value of the disabled HTML attribute, which indicates that the option is unavailable to be selected. An option can also be disabled if it is a child of an <optgroup> element that is disabled.
HTMLOptionElement.form 只读
HTMLFormElement representing the same value as the form of the corresponding <select> element, if the option is a descendant of a <select> element, or null if none is found.
HTMLOptionElement.index 只读
long representing the position of the option within the list of options it belongs to, in tree-order. If the option is not part of a list of options, like when it is part of the <datalist> element, the value is 0 .
HTMLOptionElement.label 只读
DOMString that reflects the value of the label HTML attribute, which provides a label for the option. If this attribute isn't specifically set, reading it returns the element's text content.
HTMLOptionElement.selected
Boolean that indicates whether the option is currently selected.
HTMLOptionElement.text
DOMString that contains the text content of the element.
HTMLOptionElement.value
DOMString that reflects the value of the value HTML attribute, if it exists; otherwise reflects value of the Node.textContent 特性。

方法

Inherits methods from its parent, HTMLElement .

Option()
Is a constructor creating an HTMLOptionElement object. It has four values: the text to display, text , the value associated, value , the value of defaultSelected , and the value of selected . The last three values are optional.

规范

规范 状态 Comment
HTML Living Standard
The definition of 'HTMLOptionElement' in that specification.
实时标准
HTML5
The definition of 'HTMLOptionElement' in that specification.
Recommendation A constructor, Option() , has been added.
form property can be the null value.
Document Object Model (DOM) Level 2 HTML Specification
The definition of 'HTMLOptionElement' in that specification.
Obsolete selected property changed its meaning: it now indicates if the option is currently selected and no longer if it was initally selected.
defaultSelected property is no longer read-only.
Document Object Model (DOM) Level 1 Specification
The definition of 'HTMLOptionElement' in that specification.
Obsolete 初始定义

浏览器兼容性

更新 GitHub 上的兼容性数据
Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
HTMLOptionElement Chrome Yes Edge 12 Firefox Yes IE Yes Opera Yes Safari Yes WebView Android Yes Chrome Android Yes Firefox Android Yes Opera Android Yes Safari iOS Yes Samsung Internet Android Yes
defaultSelected Chrome Yes Edge 12 Firefox Yes IE Yes Opera Yes Safari Yes WebView Android Yes Chrome Android Yes Firefox Android Yes Opera Android Yes Safari iOS Yes Samsung Internet Android Yes
disabled Chrome Yes Edge 12 Firefox Yes IE Yes Opera Yes Safari Yes WebView Android Yes Chrome Android Yes Firefox Android Yes Opera Android Yes Safari iOS Yes Samsung Internet Android Yes
form Chrome Yes Edge 12 Firefox Yes IE Yes Opera Yes Safari Yes WebView Android Yes Chrome Android Yes Firefox Android Yes Opera Android Yes Safari iOS Yes Samsung Internet Android Yes
index Chrome Yes Edge 12 Firefox Yes IE Yes Opera Yes Safari Yes WebView Android Yes Chrome Android Yes Firefox Android Yes Opera Android Yes Safari iOS Yes Samsung Internet Android Yes
label Chrome Yes Edge 12 Firefox 7
7
不支持 ? — 7
Prior to Firefox 7 the label property incorrectly returned an empty string if not defined instead of returning the element's text content.
IE Yes Opera Yes Safari Yes WebView Android Yes Chrome Android Yes Firefox Android 7
7
不支持 ? — 7
Prior to Firefox 7 the label property incorrectly returned an empty string if not defined instead of returning the element's text content.
Opera Android Yes Safari iOS Yes Samsung Internet Android Yes
selected Chrome Yes Edge 12 Firefox Yes IE Yes Opera Yes Safari Yes WebView Android Yes Chrome Android Yes Firefox Android Yes Opera Android Yes Safari iOS Yes Samsung Internet Android Yes
text Chrome Yes Edge 12 Firefox Yes IE Yes Opera Yes Safari Yes WebView Android Yes Chrome Android Yes Firefox Android Yes Opera Android Yes Safari iOS Yes Samsung Internet Android Yes
value Chrome Yes Edge 12 Firefox Yes IE Yes Opera Yes Safari Yes WebView Android Yes Chrome Android Yes Firefox Android Yes Opera Android Yes Safari iOS Yes Samsung Internet Android Yes

图例

完整支持
完整支持
见实现注意事项。

另请参阅

  • The HTML element implementing this interface: <option> .
  1. HTMLOptionElement
  2. 构造函数
    1. Option()
  3. 继承:
    1. HTMLElement
    2. Element
    3. Node
    4. EventTarget
  4. Related pages for HTML DOM
    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. HTMLOptionsCollection
    49. HTMLOutputElement
    50. HTMLParagraphElement
    51. HTMLParamElement
    52. HTMLPictureElement
    53. HTMLPreElement
    54. HTMLProgressElement
    55. HTMLQuoteElement
    56. HTMLScriptElement
    57. HTMLSelectElement
    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. History
    80. ImageData
    81. Location
    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