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XML DOM

  • DOM stands for "Document Object Model".
  • The DOM is a standard for representing XML and HTML documents as a tree-like structure consisting of nodes and elements.

Syntax

The XML DOM defines a standard way for accessing and manipulating XML documents. It is designed as a set of objects that are organized into a hierarchy.

<root>
  <element1>content</element1>
  <element2 attribute1="value1" attribute2="value2">
    <nestedElement>content</nestedElement>
  </element2>
</root>

Example

Here is an example of how to use the DOM in JavaScript to change the text of an XML element:

var xmlDoc = loadXMLDoc("example.xml");
var x = xmlDoc.getElementsByTagName("element1")[0];
x.childNodes[0].nodeValue = "new value";

Output

When the above script is executed, the content of "element1" will be changed to "new value".

Explanation

The loadXMLDoc function is a custom function that loads an XML document into a JavaScript variable. The getElementsByTagName method is then used to find the "element1" element, and the nodeValue property of the first child node is changed to "new value".

Use

The XML DOM is used to access and manipulate XML documents within web applications. It provides a hierarchical view of an XML document, allowing developers to access and modify individual elements and attributes.

Important Points

  • The XML DOM provides a standardized way to access and manipulate XML documents.
  • It is a hierarchical representation of the XML document.
  • The DOM can be manipulated using JavaScript.

Summary

In conclusion, the DOM (Document Object Model) is a standard for representing XML and HTML documents as a tree-like structure consisting of nodes and elements. It provides a hierarchical view of the XML document, allowing developers to access and modify individual elements and attributes. The DOM can be manipulated using JavaScript, making it an essential tool for web developers.

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