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E4X Examples

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E4X Example

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E4X makes scripting for XML very simple.


E4X Example

As an example, we will work with an XML document that represents an order.

The XML document looks like this:

<order>
<date>2005-08-01</date>
<customer>
  <firstname>John</firstname>
  <lastname>Johnson</lastname>
</customer>
<item>
  <name>Maxilaku</name>
  <qty>5</qty>
  <price>155.00</price>
</item>
</order>

If we had this XML document stored in a string called txt, we could load it into an XML object variable called order, by writing the following JavaScript statement:

var order = new XML(txt)

Or we could assign the XML text directly to the XML object variable:

var order = new XML()
order=<order id="555">
<date>2005-08-01</date>
<customer>
  <firstname>John</firstname>
  <lastname>Johnson</lastname>
</customer>
<item>
  <name>Maxilaku</name>
  <qty>5</qty>
  <price>155.00</price>
</item>
</order>



Working With the Data

Calculate the price:

var total=order.item.qty * order.item.price

Display the customers full name:

document.write(order.customer.lastname)
document.write(",")
document.write(order.customer.firstname)

Add a new item:

order.item+=
<item>
  <name>Pavlova</name>
  <qty>10</qty>
  <price>128.00</price>
</item>

Display the order id:

document.write(order.@id)

Calculate the total price, when the order has many items:

var price=0
for each (i in order.item)
  {
  price+= i.qty*i.price
  }



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From http://www.w3schools.com (Copyright Refsnes Data)

Home>Manual>E4X Examples