Node 的 nodeValue 属性返回或设置当前节点的值。
语法
str = node.nodeValue; node.nodeValue = str;
value是一个包含当前节点的值的字符串（如果有的话）。
值
对于文档节点来说, nodeValue返回null. 对于text, comment, 和 CDATA 节点来说, nodeValue返回该节点的文本内容. 对于 attribute 节点来说, 返回该属性的属性值.
下表就是不同类型的节点所返回的该属性的值.
| Node | Value of nodeValue |
|---|---|
CDATASection |
CDATA的文本内容 |
Comment |
注释的文本内容 |
Document |
null |
DocumentFragment |
null |
DocumentType |
null |
Element |
null |
NamedNodeMap |
null |
EntityReference |
null |
Notation |
null |
ProcessingInstruction |
整个标签的文本内容 |
Text |
文本节点的内容 |
如果nodeValue的值为null,则对它赋值也不会有任何效果.
规范
| Specification | Status | Comment |
|---|---|---|
| DOM Node: nodeValue |
Living Standard |
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 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
nodeValue | Chrome Full support Yes | Edge Full support 12 | Firefox Full support Yes | IE ? | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | 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