Document.createProcessingInstruction()
createProcessingInstruction()
creates a new processing instruction node, and returns it.
Syntax
JavaScript
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Processing instruction node = document.createProcessingInstruction(target, data)
Parameters
Processing Instruction node
is aProcessingInstruction
node.target
refers to the target part of the processing instruction node (i.e., <?target ... ?>data
is a string containing the data to be added to the data within the node.
Exceptions
NOT_SUPPORTED_ERR
- Thrown if you attempt to create a processing instruction node on an HTML document in Gecko 9 (Firefox 9.0 / Thunderbird 9.0 / SeaMonkey 2.6) or earlier. In Gecko 10.0 (Firefox 10.0 / Thunderbird 10.0 / SeaMonkey 2.7) and later, you can use this method on HTML documents.
DOM_INVALID_CHARACTER
- Thrown if you try to add an invalid processing instruction target (it should be an XML name besides any case combination of the letters "xml") or if the closing processing instruction sequence ("?>") is added as part of the data, so unescaped user-provided data cannot be safely used without escaping or otherwise dealing with such situations.
Example
JavaScript
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var docu = new DOMParser().parseFromString('<xml></xml>', "application/xml") var pi = docu.createProcessingInstruction('xml-stylesheet', 'href="mycss.css" type="text/css"'); docu.insertBefore(pi, docu.firstChild); alert(new XMLSerializer().serializeToString(docu)); // Displays: <?xml-stylesheet href="mycss.css" type="text/css"?><xml/>
Specifications
DOM 4: createProcessingInstruction
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/document/createprocessinginstruction