Document.createProcessingInstruction()

createProcessingInstruction() generates a new processing instruction node, and returns it.

Syntax

piNode = document.createProcessingInstruction(target, data) 

Parameters

• piNode is a ProcessingInstruction node.
• target refers to the first part of the processing instruction (i.e., <?target … >)
• data is a string containing the data of the node.

Exceptions

DOM_INVALID_CHARACTER

Thrown if you try adding an invalid processing instruction target (it should be a valid XML name besides any case combination of the letters "xml"), or if the closing processing instruction sequence (?>) is added as part of the data.

Example

var doc = new DOMParser().parseFromString('<xml></xml>', "application/xml")
var pi = doc.createProcessingInstruction('xml-stylesheet', 'href="mycss.css" type="text/css"');

doc.insertBefore(pi, doc.firstChild);

alert(new XMLSerializer().serializeToString(doc));
// Displays: <?xml-stylesheet href="mycss.css" type="text/css"?><xml/>

Specifications

DOM 4: createProcessingInstruction

Browser compatibility