HTMLOptionsCollection interface represents a collection of <option> HTML elements (in document order) and offers methods and properties for selecting from the list as well as optionally altering its items. This object is returned only by the 选项 property of select .

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

特性

名称	类型	描述
length	unsigned long	As optionally allowed by the spec, this property isn't read-only. You can either remove options from the end by lowering the value, or add blank options at the end by raising the value. Mozilla allows this, while other implementations could potentially throw a DOMException .

方法

This interface inherits the methods of its parent, HTMLCollection .

规范

规范	状态	注释
HTML 实时标准 The definition of 'HTMLOptionsCollection' in that specification.	实时标准

浏览器兼容性

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. 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
HTMLOptionsCollection	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
add	Chrome Yes	Edge ≤18	Firefox Yes	IE ?	Opera Yes	Safari Yes	WebView Android Yes	Chrome Android Yes	Firefox Android Yes	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes
length	Chrome Yes	Edge 13	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
remove	Chrome Yes	Edge ≤18	Firefox Yes	IE ?	Opera Yes	Safari Yes	WebView Android Yes	Chrome Android Yes	Firefox Android Yes	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes
selectedIndex	Chrome Yes	Edge ≤18	Firefox Yes	IE ?	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

兼容性未知 ?

兼容性未知

另请参阅

• HTMLCollection

元数据

• 最后修改： Jan 10, 2020