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What is the virtual DOM?

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Ayush Kumar

Lvl 5
2y ago
Updated: 4/18/2023

The virtual DOM is a lightweight, in-memory representation of the actual Document Object Model (DOM) in a web browser. It is used by React and other JavaScript libraries to optimize rendering and minimize updates to the actual DOM. The virtual DOM acts as an intermediate layer between the UI and the actual DOM, allowing developers to update the UI more efficiently. When the state of a React component changes, React uses the virtual DOM to compare the current state with the previous state and make the minimum necessary changes to the actual DOM. This approach results in a fast and responsive user interface, even for complex applications.

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Ayush Kumar

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2y ago

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