XPath Examples - The Diigo Meta page

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  • Loading the XML Document

     

    Using XMLHttpRequest to load XML documents is supported in all modern  browsers.

     

    Code for most modern browsers:

      

     var xmlhttp=new XMLHttpRequest()

     

    Code for old Microsoft browsers (IE 5 and 6):

     

     var xmlhttp=new ActiveXObject("Microsoft.XMLHTTP")
  • Selecting Nodes

  • Internet Explorer uses the selectNodes() method to select nodes from the XML document:

      

      xmlDoc.selectNodes(xpath);

  • Firefox, Chrome, Opera and Safari use the evaluate() method to select nodes from the  XML document:

     

      xmlDoc.evaluate(xpath, xmlDoc, null, XPathResult.ANY_TYPE,null);
  • /bookstore/book/title
  • /bookstore/book[1]/title
  • /bookstore/book/price[text()]
  • /bookstore/book[price>35]/price
  • /bookstore/book[price>35]/title

  7 more annotations...

• 14 May 13
  

  lfenjoy9
  • Firefox, Chrome, Opera and Safari use the evaluate() method to select nodes from the  XML document:
• 29 Mar 13
  

  the devx
  • Using XMLHttpRequest to load XML documents is supported in all modern  browsers.
  • /bookstore/book/title
  • /bookstore/book[1]/title
  • /bookstore/book/price/text()
  • /bookstore/book[price>35]/price
  • /bookstore/book[price>35]/title

  4 more annotations...

• 28 Aug 12
  

  dagoberto saraiva
  • books.xml
  • XMLHttpRequest to load XML documents
  • Internet Explorer uses the selectNodes()
  • evaluate()

  2 more annotations...

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  Xuan Dong
  • nternet Explorer uses the selectNodes() method to select nodes from the XML document:
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  Select title nodes with price>35
  
  The following example selects all the title nodes with a price higher than 35:

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  • The XML Example Document

      

    We will use the following XML document in the examples below.

     

    "books.xml":

         

    <?xml version="1.0" encoding="ISO-8859-1"?>   <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>

     

    View the "books.xml" file in your browser.

     

    ---

      

    Selecting Nodes

     

    We will use the Microsoft XMLDOM object to load the XML document and the  selectNodes() function to select nodes from the XML document:

        

    set xmlDoc=CreateObject("Microsoft.XMLDOM") xmlDoc.async="false" xmlDoc.load("books.xml")   xmlDoc.selectNodes(path expression)

     
     

    ---

      

    Select all book Nodes

     

    The following example selects all the book nodes under the bookstore element:

        

    xmlDoc.selectNodes("/bookstore/book")

     

     If you have IE 5 or higher you can try it yourself.

     

    ---

      

    Select the First book Node

     

    The following example selects only the first book node under the bookstore  element:

        

    xmlDoc.selectNodes("/bookstore/book[0]")

     

     If you have IE 5 or higher you can try it yourself.

     

    Note: IE 5 and 6 has implemented that [0] should be the first node,  but according to the W3C standard it should have been [1]!!

     

    ---

      

    Select the prices

     

    The following example selects the text from all the price nodes:

        

    xmlDoc.selectNodes("/bookstore/book/price/text()")

     

     If you have IE 5 or higher you can try it yourself.

     

    ---

       

    Selecting price Nodes with Price>35

     

    The following example selects all the price nodes with a price higher than  35:

        

    xmlDoc.selectNodes("/bookstore/book[price>35]/price")

     

     If you have IE 5 or higher you can try it yourself.

     

    ---

      

    Selecting title Nodes with Price>35

     

    The following example selects all the title nodes with a price higher  than 35:

        

    xmlDoc.selectNodes("/bookstore/book[price>35]/title")

     

     If you have IE 5 or higher you can try it yourself.

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