Many helpful tools are available to support developers on the path React. Those include react developer tools and Redux development software, which include Chrome extensions to help find code errors and fixing bugs.
Unnecessary DOM updates are the main problem for most JS frames. If an object changes, the whole interface needs to be re-rendered to implement the change. This can significantly slow down our application performance and speed.
Virtual DOM is a copy of a real DOM in the memory of the browser. For example, any virtual DOM object is modified, when a user interacts with the app by pushing a button. Then React compares the new virtual DOM to its previous iteration and only applies improvements in real DOM objects that are changed in it's virtual copy.
In React, there are separate components for all UI elements such as buttons, menus, headers, etc. Components can be represented in the code according to their purpose by functions or classes. Functional components are very simple and easy to use to present data. Unlike their functional components class-based components can manipulate data in contrast to their functional counterparts. The good news is that with the implementation of hooks, this feature will become available for functional components as well.
The main benefit of React components is that they can be reused further in the project. If we have ten buttons on a tab, we simply need to build the function once, and then move specific parameters to it to get ten buttons.
The best thing is that we don't have to learn native frameworks because React covers us completely. It's cool, isn't it?