CSSValueList interface derives from the CSSValue interface and provides the abstraction of an ordered collection of CSS values.

Some properties allow an empty list in their syntax. In that case, these properties take the none identifier. So, an empty list means that the property has the value none .

The items in the CSSValueList are accessible via an integral index, starting from 0.

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特性

继承的特性来自其父级, CSSValue .

CSSValueList.length 只读
An unsigned long representing the number of CSSValues 在列表中。

方法

CSSValueList.item()
This method is used to retrieve a CSSValue by ordinal index. The order in this collection represents the order of the values in the CSS style property. If index is greater than or equal to the number of values in the list, this returns null .

规范

规范 状态 注释
Document Object Model (DOM) Level 2 Style Specification
The definition of 'CSSValuesList' in that specification.
过时 初始定义

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
CSSValueList 弃用 Chrome 不支持 No Edge 不支持 No Firefox 不支持 1 — 62 IE ? Opera 不支持 No Safari ? WebView Android 不支持 No Chrome Android 不支持 No Firefox Android 不支持 4 — 62 Opera Android ? Safari iOS ? Samsung Internet Android 不支持 No
item 弃用 Chrome 不支持 No Edge 不支持 No Firefox 不支持 1 — 62 IE ? Opera 不支持 No Safari ? WebView Android 不支持 No Chrome Android 不支持 No Firefox Android 不支持 4 — 62 Opera Android ? Safari iOS ? Samsung Internet Android 不支持 No
length 弃用 Chrome 不支持 No Edge 不支持 No Firefox 不支持 1 — 62 IE ? Opera 不支持 No Safari ? WebView Android 不支持 No Chrome Android 不支持 No Firefox Android 不支持 4 — 62 Opera Android ? Safari iOS ? Samsung Internet Android 不支持 No

图例

不支持

不支持

兼容性未知 ?

兼容性未知

弃用。不要用于新网站。

弃用。不要用于新网站。

另请参阅

元数据

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