What is Virtual DOM?

Question

Recently, I looked at Facebook\'s React framework. It uses a concept called \"the Virtual DOM,\" which I didn\'t really understand.

What is the Virtual DOM? What are

Answer 1

It’s a neat concept: instead of manipulating the DOM directly, which is error prone and relies on mutable state, you instead output a value called the Virtual DOM. The Virtual DOM is then diffed with the current state of the DOM, which generates a list of DOM operations that would make the current DOM look like the new one. Those operations are applied quickly in a batch.

Taken from here.