XPath includes over 200 built-in functions. There are functions for string values, numeric values, booleans, date and time comparison, node manipulation, sequence manipulation, and much more.

XPath uses path expressions to select nodes or node-sets in an XML document. The node is selected by following a path or steps.

Selecting Nodes Unfortunately, there are different ways of dealing with XPath in different browsers. Chrome, Firefox, Edge, Opera, and Safari use the evaluate () method to select nodes:

XPath uses path expressions to select nodes or node-sets in an XML document. These path expressions look very much like the expressions you see when you work with a traditional computer file system.

In XPath, there are seven kinds of nodes: element, attribute, text, namespace, processing-instruction, comment, and root nodes. XML documents are treated as trees of nodes.

XPath Axes An axis represents a relationship to the context (current) node, and is used to locate nodes relative to that node on the tree.

The default prefix for the function namespace is fn: The URI of the function namespace is: http://www.w3.org/2005/xpath-functions

Definition and Usage The xpath () function runs an XPath query on the XML document.

var result = nodes.iterateNext(); while (result) { txt += result.childNodes[0].nodeValue + "<br>"; result = nodes.iterateNext(); } // Code For Internet Explorer } else if (window.ActiveXObject || …

XQuery allows you to select and filter XML data using various expressions and conditions.