What is the DOM?
Each element on the page, such as headings, paragraphs, and images, is represented as a node in the DOM tree. Nodes can have parent-child relationships, just like in a family tree.
Let's look at a simple HTML example:
In this example, the DOM tree would look something like this:
document node is the root of the tree, with
html as its child. The
html node has two children,
body, and so on.
Why is the DOM Important?
The DOM is crucial for web development for several reasons:
Manipulating Content: With the DOM, you can modify the content of a webpage dynamically. For instance, you can insert, update, or delete elements, change text, and even add or remove classes and styles.
Getting Started with the DOM
Once you've accessed an element, you can manipulate its properties and methods to modify content, attributes, and styles, or add event listeners:
Now that you have a basic understanding of the Document Object Model and its importance, you're ready to dive deeper into the world of web development and create dynamic, interactive websites.
What is the Document Object Model (DOM)?
Why is the DOM important?
querySelector. These methods allow you to access elements by their ID attribute, class name, or using a CSS selector, respectively.