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A processing instruction provides an opportunity for application-specific instructions to be embedded within XML and which can be ignored by XML processors which do not support processing their instructions (outside of their having a place in the DOM).

A Processing instruction is distinct from a XML Declaration which is used for other information about the document such as encoding and which appear (if it does) as the first item in the document.

User-defined processing instructions cannot begin with 'xml', as these are reserved (e.g., as used in <?xml-stylesheet ?>).

Also inherits methods and properties from Node.


  • target (DOMString) - after the <? and before whitespace delimiting it from data
  • data (DOMString) - first non-whitespace character after target and before ?>


See also

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 Contributors to this page: fscholz, SphinxKnight, Reachmeatshivam, Sheppy, Brettz9, George3
 Last updated by: fscholz,