Document. No
Document Object Model
Introduction
The Document Object Model (DOM) is a programming interface for HTML and XML documents. It allows you to programmatically access and manipulate the structure and content of a document. This makes it possible to create dynamic and interactive web pages.
Benefits of Using the DOM
There are many benefits to using the DOM, including:
- Improved performance: By using the DOM, you can avoid the overhead of parsing the HTML or XML document yourself.
- Increased flexibility: The DOM allows you to manipulate the document in any way you want.
- Cross-browser compatibility: The DOM is supported by all major browsers.
Structure of the DOM
The DOM is a tree-like structure. The root node is the document itself. Each node in the tree represents an element in the document. For example, the following HTML document would be represented by the following DOM tree:
Example HTML Document
```htmlDocument Object Model
The Document Object Model (DOM) is a programming interface for HTML and XML documents.
```Corresponding DOM Tree
```htmlDocument Object Model
The Document Object Model (DOM) is a programming interface for HTML and XML documents.
```Accessing the DOM
There are many ways to access the DOM. The most common way is to use the getElementById() method. This method takes the ID of an element as an argument and returns the corresponding DOM node. For example, the following code would return the DOM node for the
element in the above document:
```html var p = document.getElementById("p"); ```Manipulating the DOM
Once you have a DOM node, you can manipulate it in any way you want. For example, you can change the content of an element, add or remove elements, or change the style of an element. The following code would change the content of the
element in the above document to "Hello world!":
```html p.innerHTML = "Hello world!"; ```Conclusion
The DOM is a powerful tool that allows you to programmatically access and manipulate the structure and content of a document. This makes it possible to create dynamic and interactive web pages.
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