ProcessingInstruction
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The ProcessingInstruction interface represents a processing instruction; that is, a Node which embeds an instruction targeting a specific application but that can be ignored by any other applications which don't recognize the instruction.
Warning:
ProcessingInstruction nodes are only supported in XML documents, not in HTML documents. In these, a process instruction will be considered as a comment and be represented as a Comment object in the tree.
A processing instruction may be different than the XML declaration.
Note:
User-defined processing instructions cannot begin with "xml", as xml-prefixed processing-instruction target names are reserved by the XML specification for particular, standard uses (see, for example, <?xml-stylesheet ?>.
For example:
<?xml version="1.0"?>
is a processing instruction whose target is xml.
Instance properties
This interface also inherits properties from its parent interfaces, CharacterData, Node, and EventTarget.
ProcessingInstruction.sheetRead only-
Returns the associated
StyleSheetobject, if any; ornullif none. ProcessingInstruction.targetRead only-
A name identifying the application to which the instruction is targeted.
Instance methods
This interface doesn't have any specific method, but inherits methods from its parent interfaces, CharacterData, Node, and EventTarget.
Specifications
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| DOM # interface-processinginstruction |
Browser compatibility
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Legend
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