Document.createCDATASection()
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2015年7月.
createCDATASection() 创建并返回一个新的 CDATA 片段节点。
语法
var CDATASectionNode = document.createCDATASection(data);
- CDATASectionNode 是一个 CDATA 片段节点。
- data 包含了要被添加至 CDATA 片段的数据的字符串。
示例
js
var docu = new DOMParser().parseFromString("<xml></xml>", "application/xml");
var cdata = docu.createCDATASection("Some <CDATA> data & then some");
docu.getElementsByTagName("xml")[0].appendChild(cdata);
alert(new XMLSerializer().serializeToString(docu));
// Displays: <xml><![CDATA[Some <CDATA> data & then some]]></xml>
备注
- This will only work with XML, not HTML documents (as HTML documents do not support CDATA sections); attempting it on an HTML document will throw
NOT_SUPPORTED_ERR. - Will throw a
NS_ERROR_DOM_INVALID_CHARACTER_ERRexception if one tries to submit the closing CDATA sequence ("]]>") as part of the data, so unescaped user-provided data cannot be safely used without with this method getting this exception (createTextNode()can often be used in its place).
规范
| Specification |
|---|
| DOM # ref-for-dom-document-createcomment① |
浏览器兼容性
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