Here's how the Virtual DOM works and how it aids in performance optimization in React:
Optimised Re-rendering: The Virtual DOM allows React to optimise how it updates the real DOM. React strategically determines the most efficient way to apply changes, including avoiding unnecessary DOM manipulations.
Reduced Browser Repaints: By updating the real DOM in a controlled manner, React minimises browser repaints and reflows, which can be resource-intensive and slow down the user interface.
Performance Gains: The Virtual DOM's approach to updating the UI helps reduce the performance bottlenecks associated with direct manipulation of the DOM. This leads to smoother user experiences, especially in complex applications where there are frequent updates.