I volontari di MDN non hanno ancora tradotto questo articolo in Italiano. Unisciti a noi e traducilo tu stesso.
Puoi anche consultare l’articolo in English (US).
HTMLOptionsCollection is an interface representing a collection of HTML option elements (in document order) and offers methods and properties for traversing the list as well as optionally altering its items. This type is returned solely by the "options" property of select.
<div id="interfaceDiagram" style="display: inline-block; position: relative; width: 100%; padding-bottom: 11.666666666666666%; vertical-align: middle; overflow: hidden;"><svg style="display: inline-block; position: absolute; top: 0; left: 0;" viewbox="-50 0 600 70" preserveAspectRatio="xMinYMin meet"><a xlink:href="https://developer.mozilla.org/en-US/docs/Web/API/HTMLCollection" target="_top"><rect x="1" y="1" width="140" height="50" fill="#fff" stroke="#D4DDE4" stroke-width="2px" /><text x="71" y="30" font-size="12px" font-family="Consolas,Monaco,Andale Mono,monospace" fill="#4D4E53" text-anchor="middle" alignment-baseline="middle">HTMLCollection</text></a><polyline points="141,25 151,20 151,30 141,25" stroke="#D4DDE4" fill="none"/><line x1="151" y1="25" x2="181" y2="25" stroke="#D4DDE4"/><a xlink:href="https://developer.mozilla.org/en-US/docs/Web/API/HTMLOptionsCollection" target="_top"><rect x="181" y="1" width="210" height="50" fill="#F4F7F8" stroke="#D4DDE4" stroke-width="2px" /><text x="286" y="30" font-size="12px" font-family="Consolas,Monaco,Andale Mono,monospace" fill="#4D4E53" text-anchor="middle" alignment-baseline="middle">HTMLOptionsCollection</text></a></svg></div>
a:hover text { fill: #0095DD; pointer-events: all;}
Properties
| Name | Type | Description |
length |
unsigned long |
As optionally allowed by the spec, Mozilla allows this property to be set, either removing options at the end when using a shorter length, or adding blank options at the end when setting a longer length. Other implementations could potentially throw a DOMException. |
Methods
- item(index) - returns the specific node at the given zero-based index (gives null if out of range)
- namedItem(name) - returns the specific node with the given DOMString (i.e., string) id. Returns null if no such named node exists.
Specification
- http://www.w3.org/TR/DOM-Level-2-HTM...ionsCollection
- http://dev.w3.org/html5/spec/common-...ionscollection
Browser compatibility
The compatibility table on 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.
Update compatibility data on GitHub
| Desktop | Mobile | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
HTMLOptionsCollection | Chrome Full support Yes | Edge Full support Yes | Firefox Full support Yes | IE Full support Yes | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Edge Mobile Full support Yes | Firefox Android Full support Yes | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
length | Chrome Full support Yes | Edge Full support 13 | Firefox Full support Yes | IE Full support Yes | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Edge Mobile Full support Yes | Firefox Android Full support Yes | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
add | Chrome Full support Yes | Edge Full support Yes | Firefox Full support Yes | IE ? | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Edge Mobile ? | Firefox Android Full support Yes | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
remove | Chrome Full support Yes | Edge Full support Yes | Firefox Full support Yes | IE ? | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Edge Mobile ? | Firefox Android Full support Yes | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
selectedIndex | Chrome Full support Yes | Edge Full support Yes | Firefox Full support Yes | IE ? | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Edge Mobile ? | Firefox Android Full support Yes | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
Legend
- Full support
- Full support
- Compatibility unknown
- Compatibility unknown
See also
Tag del documento e collaboratori
Tag:
Hanno collaborato alla realizzazione di questa pagina:
mdnwebdocs-bot,
connorshea,
ExE-Boss,
Sebastianz,
fscholz,
teoli,
kscarfone,
Sheppy,
ethertank,
mkato,
Brettz9
Ultima modifica di:
mdnwebdocs-bot,