Baseline Widely available
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:
is a processing instruction whose target is xml.
This interface also inherits properties from its parent interfaces, CharacterData, Node, and EventTarget.
ProcessingInstruction.sheet Read only
Returns the associated StyleSheet object, if any; or null if none.
ProcessingInstruction.target Read only
A name identifying the application to which the instruction is targeted.
This interface doesn't have any specific method, but inherits methods from its parent interfaces, CharacterData, Node, and EventTarget.
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