When should I use a virtual DOM?

What is a virtual DOM and when should I use it?

A virtual DOM is a lightweight copy of the actual DOM. You should use it when you need efficient updates to the UI.

Why is it more efficient than directly manipulating the real DOM?

It minimizes direct interactions with the real DOM, which can be slow. The virtual DOM allows for batch updates and reduces reflows.

Can you give me an example of a framework that uses a virtual DOM?

Sure! React is a popular framework that uses a virtual DOM to optimize rendering performance.

Are there any downsides to using a virtual DOM?

Yes, while it improves performance in many cases, it can add complexity and overhead for simple applications.