The Virtual DOM (VDOM) is a lightweight, in-memory representation of Real DOM used by libraries like React to optimize UI rendering. The representation of a UI is kept in memory and synced with the "real" DOM. It's a step that happens between the render function being called and the displaying of elements on the screen. This entire process is called reconciliation.
React esencial#16 · Preguntas adaptadas de sudheerj/reactjs-interview-questions (MIT)
What is Virtual DOM?
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