XPath Examples
XPath Examples
Let's try to learn some basic XPath syntax by looking at some examples.
We will use the following XML document in the examples below (books.xml):
<?xml version="1.0" encoding="UTF-8"?>
<bookstore>
<book category="cooking">
<title lang="en">Everyday Italian</title>
<author>Giada De Laurentiis</author>
<year>2005</year>
<price>30.00</price>
</book>
<book category="children">
<title lang="en">Harry Potter</title>
<author>J K. Rowling</author>
<year>2005</year>
<price>29.99</price>
</book>
<book category="web">
<title lang="en">XQuery Kick Start</title>
<author>James McGovern</author>
<author>Per Bothner</author>
<author>Kurt Cagle</author>
<author>James Linn</author>
<author>Vaidyanathan Nagarajan</author>
<year>2003</year>
<price>49.99</price>
</book>
<book category="web">
<title lang="en">Learning XML</title>
<author>Erik T. Ray</author>
<year>2003</year>
<price>39.95</price>
</book>
</bookstore>
Load the XML Document
Using an XMLHttpRequest object to load XML documents is supported in all modern browsers.
var xmlhttp = new XMLHttpRequest();
Select Nodes
Use the evaluate() method to select nodes:
xmlDoc.evaluate(xpath, xmlDoc, null, XPathResult.ANY_TYPE,null);
Select all title Nodes
The following example selects all the title nodes:
Select title of the first book
The following example selects the title of the first book node under the bookstore element:
Select all the prices
The following example selects the text from all the price nodes:
Select price nodes with price>35
The following example selects all the price nodes with a price higher than 35:
Select title nodes with price>35
The following example selects all the title nodes with a price higher than 35:
