Node.getUserData() - Web API 接口参考 编辑

已废弃
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

The Node.getUserData() method returns any user DOMUserData set previously on the given node by Node.setUserData().

The Node.setUserData and Node.getUserData methods are no longer available from Web content. Element.dataset or WeakMap can be used instead.

Syntax

userData = someNode.getUserData(userKey);

Parameters

• userKey is the key to choose the specific data sought for the given node. More than one key may have been assigned on a given node, containing its own value.

Example

var d = document.setUserData('key', 15, null);
alert(document.getUserData('key')); // 15

Specifications

Specification	Status	Comment
DOM Node	Living Standard	Removed from the specification.
Document Object Model (DOM) Level 3 Core Specification Node.getUserData()	Obsolete	Initial definition.

Browser compatibility

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

• Desktop
• Mobile

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari
Basic support	未实现	Supported from 1.0 (1.7 or earlier) to 21.0 (21.0). Removed in 22.0 (22.0) [1]	?	未实现	未实现

Feature	Android	Firefox Mobile (Gecko)	IE Mobile	Opera Mobile	Safari Mobile
Basic support	未实现	Supported from 1.0 (1.0) to 21.0 (21.0). Removed in 22.0 (22.0) [1]	(Yes)	未实现	未实现

[1] The method is still available from chrome scripts.

See also

• Node.setUserData()
• UserDataHandler
• DOMUserData