{"id":23186,"date":"2013-05-13T17:01:45","date_gmt":"2013-05-13T11:31:45","guid":{"rendered":"http:\/\/vskills.in\/certification\/tutorial\/?p=23186"},"modified":"2024-04-12T14:23:51","modified_gmt":"2024-04-12T08:53:51","slug":"xpath-functions","status":"publish","type":"page","link":"https:\/\/www.vskills.in\/certification\/tutorial\/xpath-functions\/","title":{"rendered":"XPath Functions"},"content":{"rendered":"

You can use XML Path Language (Xpath) functions to refine XPath queries and enhance the programming power and flexibility of XPath.<\/p>\n

The functions are divided into the following groups.<\/p>\n\n\n\n\n\n\n\n
Node-Set<\/a><\/td>\nTakes a\u00a0node-set\u00a0<\/em>argument, returns a node-set, or returns\/provides information about a particular node within a node-set.<\/td>\n<\/tr>\n
String<\/a><\/td>\nPerforms evaluations, formatting, and manipulation on string arguments.<\/td>\n<\/tr>\n
Boolean<\/a><\/td>\nEvaluates the argument expressions to obtain a Boolean result.<\/td>\n<\/tr>\n
Number<\/a><\/td>\nEvaluates the argument expressions to obtain a numeric result.<\/td>\n<\/tr>\n
Microsoft XPath Extension Functions<\/a><\/td>\nMicrosoft extension functions to XPath that provide the ability to select nodes by XSD type. Also includes string comparison, number comparison, and date\/time conversion functions.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Each function in the function library is specified using a function prototype that provides the return type, function name, and argument type. If an argument type is followed by a question mark, the argument is optional; otherwise, the argument is required. Function names are case-sensitive.<\/p>\n

About XPath Functions<\/h2>\n

The XPath language provides for a core library of functions that deal with:<\/p>\n