USING E4X we can EASILY use JAVASCRIPT with an XML.

Example:I have written an XML document.

<order>
<date>2009-26-01</date>
<customer> 
<firstname>Porus</firstname> 
<lastname>Jain</lastname>
</customer>
<item><name>Milk</name> 
<qty>4</qty>
<price>100.00</price></item></order> 

We can stroe this XML document as an string in variable order.

var order = new XML(txt) or Assign the XML text to the XML object variable directly.

var order = new XML()
order=<order id="010">
<date>2009-26-01</date>
<customer>
<firstname>Porus</firstname>
<lastname>Jain</lastname>
</customer>
<item><name>Milk</name>
<qty>4</qty>
<price>100.00</price>
</item></order>

We can also calculate the price like that,

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

we display the customers full name like that,

document.write(order.customer.lastname)
document.write(",")
document.write(order.customer.firstname)
Can add new items like that,
order.item+=<item> 
 <name>BREAD</name> 
 <qty>5</qty> 
 <price>70.00</price>
</item>We can display the order id like that,
document.write(order.@id)

We can calculate the total price, when the order has many items like that,

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

Using E4X we can easily use JAvAScript with an XML.

Example:I have written an XML document.

<order>
<date>2009-26-01</date>
<customer> 
<firstname>Porus</firstname> 
<lastname>Jain</lastname>
</customer>
<item><name>Milk</name> 
<qty>4</qty>
<price>100.00</price></item></order> 

We can stroe this XML document as an string in variable order.

var order = new XML(txt) or Assign the XML text to the XML object variable directly.

var order = new XML()
order=<order id="010">
<date>2009-26-01</date>
<customer>
<firstname>Porus</firstname>
<lastname>Jain</lastname>
</customer>
<item><name>Milk</name>
<qty>4</qty>
<price>100.00</price>
</item></order>

We can also calculate the price like that,

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

we display the customers full name like that,

document.write(order.customer.lastname)
document.write(",")
document.write(order.customer.firstname)
Can add new items like that,
order.item+=<item> 
 <name>Bread</name> 
 <qty>5</qty> 
 <price>70.00</price>
</item>We can display the order id like that,
document.write(order.@id)

We can calculate the total price, when the order has many items like that,

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