HTMLOptionElement - Web APIs 编辑

The HTMLOptionElement interface represents <option> elements and inherits all classes and methods of the HTMLElement interface.

  <div id="interfaceDiagram" style="display: inline-block; position: relative; width: 100%; padding-bottom: 20%; vertical-align: middle; overflow: hidden;"><svg style="display: inline-block; position: absolute; top: 0; left: 0;" viewbox="-50 0 600 120" preserveAspectRatio="xMinYMin meet"><a xlink:href="/wiki/en-US/docs/Web/API/EventTarget" target="_top"><rect x="1" y="1" width="110" height="50" fill="#fff" stroke="#D4DDE4" stroke-width="2px" /><text  x="56" y="30" font-size="12px" font-family="Consolas,Monaco,Andale Mono,monospace" fill="#4D4E53" text-anchor="middle" alignment-baseline="middle">EventTarget</text></a><polyline points="111,25  121,20  121,30  111,25" stroke="#D4DDE4" fill="none"/><line x1="121" y1="25" x2="151" y2="25" stroke="#D4DDE4"/><a xlink:href="/wiki/en-US/docs/Web/API/Node" target="_top"><rect x="151" y="1" width="75" height="50" fill="#fff" stroke="#D4DDE4" stroke-width="2px" /><text  x="188.5" y="30" font-size="12px" font-family="Consolas,Monaco,Andale Mono,monospace" fill="#4D4E53" text-anchor="middle" alignment-baseline="middle">Node</text></a><polyline points="226,25  236,20  236,30  226,25" stroke="#D4DDE4" fill="none"/><line x1="236" y1="25" x2="266" y2="25" stroke="#D4DDE4"/><a xlink:href="/wiki/en-US/docs/Web/API/Element" target="_top"><rect x="266" y="1" width="75" height="50" fill="#fff" stroke="#D4DDE4" stroke-width="2px" /><text  x="303.5" y="30" font-size="12px" font-family="Consolas,Monaco,Andale Mono,monospace" fill="#4D4E53" text-anchor="middle" alignment-baseline="middle">Element</text></a><polyline points="341,25  351,20  351,30  341,25" stroke="#D4DDE4" fill="none"/><line x1="351" y1="25" x2="381" y2="25" stroke="#D4DDE4"/><a xlink:href="https://developer.mozilla.org/wiki/en-US/docs/Web/API/HTMLElement" target="_top"><rect x="381" y="1" width="110" height="50" fill="#fff" stroke="#D4DDE4" stroke-width="2px" /><text  x="436" y="30" font-size="12px" font-family="Consolas,Monaco,Andale Mono,monospace" fill="#4D4E53" text-anchor="middle" alignment-baseline="middle">HTMLElement</text></a><polyline points="491,25  501,20  501,30  491,25" stroke="#D4DDE4" fill="none"/><line x1="501" y1="25" x2="509" y2="25" stroke="#D4DDE4"/><line x1="509" y1="25" x2="509" y2="90" stroke="#D4DDE4"/><line x1="509" y1="90" x2="492" y2="90" stroke="#D4DDE4"/><a xlink:href="/wiki/en-US/docs/Web/API/HTMLOptionElement" target="_top"><rect x="321" y="65" width="170" height="50" fill="#F4F7F8" stroke="#D4DDE4" stroke-width="2px" /><text  x="406" y="94" font-size="12px" font-family="Consolas,Monaco,Andale Mono,monospace" fill="#4D4E53" text-anchor="middle" alignment-baseline="middle">HTMLOptionElement</text></a></svg></div>

  a:hover text { fill: #0095DD; pointer-events: all;}

Properties

Inherits properties from its parent, HTMLElement.

HTMLOptionElement.defaultSelected

Is a Boolean that contains the initial value of the selected HTML attribute, indicating whether the option is selected by default or not.

HTMLOptionElement.disabled

Is a 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 Read only

Is a 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 Read only

Is a 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 Read only

Is a 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

Is a Boolean that indicates whether the option is currently selected.

HTMLOptionElement.text

Is a DOMString that contains the text content of the element.

HTMLOptionElement.value

Is a DOMString that reflects the value of the value HTML attribute, if it exists; otherwise reflects value of the Node.textContent property.

Methods

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.

Specifications

Browser compatibility

BCD tables only load in the browser

See also

• The HTML element implementing this interface: <option>.