Difference between DOM and Virtual DOM how are they different?

Question

Accepted Answer

DOM is a tree-like structure representing the HTML document, while Virtual DOM is a lightweight copy of the DOM.

DOM is the actual representation of the HTML document in the browser's memory.
Virtual DOM is a concept where a lightweight copy of the DOM is created and manipulated instead of directly modifying the actual DOM.
Changes made to the Virtual DOM are compared with the actual DOM, and only the necessary updates are applied to the real DOM, resulting in better performance.
Virtual DOM helps in efficiently updating the UI without causing unnecessary re-renders of the entire page.
React is a popular JavaScript library that uses Virtual DOM to efficiently update the UI.

Accepted Answer

A virtual DOM object has the same properties as a real DOM object, but it lacks the real thing's power to directly change what's on the screen. Manipulating the DOM is slow. Manipulating the virtual DOM is much faster, because nothing gets drawn onscreen.

Difference between DOM and Virtual DOM how are they different?

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