React card review1 min read
easyWhat is the Virtual DOM in React?
Virtual DOM is a lightweight copy of the actual DOM maintained by React.
When the state or props change, React creates a new Virtual DOM tree and compares it with the previous one using a process called Diffing.
React then updates only the changed parts in the real DOM, improving performance and reducing unnecessary re-rendering.
Benefits:
- Faster updates
- Better performance
- Efficient DOM manipulation
- Improved user experience
Example: When a counter changes from 1 to 2, React updates only that text node instead of re-rendering the entire page.