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06 May
Are you struggling to dynamically update web pages or build interactive user interfaces? Often, the core of these tasks lies in manipulating the Document Object Model (DOM) – the tree-like representation of an HTML document. Selecting the correct elements within this structure is paramount for any JavaScript developer. Without a solid understanding of how to target specific DOM nodes based on different criteria, your web applications can become sluggish and difficult to maintain.
The DOM is a tree-like structure that represents an HTML or XML document. Each element in the original document becomes a node in this tree. These nodes are organized hierarchically, with elements nested within other elements. JavaScript uses the DOM to access and modify the content, structure, and style of web pages. A fundamental concept is that you treat your HTML as data – something you can read, change, and add to using code.
For example, a simple HTML document like this:
Welcome to My Website
This is a paragraph of text.
- Item 1
- Item 2
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