What is the virtual DOM in JavaScript?
The virtual DOM is a lightweight representation of the actual DOM. It allows for efficient updates by minimizing direct manipulation of the real DOM.
How does the virtual DOM improve performance?
It improves performance by batching updates and reducing the number of direct manipulations to the real DOM, which is slower.
Can you explain how React uses the virtual DOM?
React uses the virtual DOM to keep a copy of the real DOM in memory. When changes occur, it updates the virtual DOM first, then calculates the most efficient way to update the real DOM.
What are the benefits of using a virtual DOM?
Benefits include improved performance, easier debugging, and a more declarative programming style.
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