Virtual DOM

from React Beginner Tutorial

• React has a Virtual DOM that corresponds to the actual DOM as a JavaScript object.
• When we manipulate the virtual DOM, React cleverly reflects those changes onto the actual DOM.
  • The virtual DOM can be easily linked with data, allowing us to automatically update the DOM just by manipulating the data.
  • As a result, it is also beneficial to separate the logic for UI updates from the logic for data manipulation.