What is react virtual dom, and how it works?

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Accepted Answer

React virtual DOM is a lightweight copy of the actual DOM, used for efficient rendering of UI components.

Virtual DOM is a concept where a lightweight copy of the actual DOM is created and updated by React.
When changes are made to the UI, React compares the virtual DOM with the actual DOM to determine the minimal number of updates needed.
This process helps in optimizing performance by reducing the number of DOM manipulations required.
Example: When a user interacts with a React component, the virtual DOM is updated first, and then React efficiently updates the actual DOM based on the changes.
Virtual DOM allows React to batch updates and perform them in an optimized manner, improving the overall performance of the application.

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