The basic principles of react js are: components have their own logic and controls, and data flows from the top level “App” component down to the bottom level “Component”. React uses an object-based architecture, which means that changes to one component do not affect the other. This makes it easier to debug and troubleshoot errors. React also helps developers organize their applications in a logical manner, since it allows them to nest child components within parent components.

Before the creation of ReactJS, developers had to develop web applications using vanilla JavaScript or its less UI-focused predecessors. These solutions would take longer and produce more errors. Thankfully, an engineer from Facebook named Jordan Walke came up with the React library in 2011. Since then, developers and designers have been creating web applications with React ever since. Its popularity has been increasing exponentially, and it is now one of the most popular libraries in the world.

For developers who have experience building cross-platform applications, React Native can help. Its code is written in JavaScript, and developers can easily add native components to their code. This keeps downward data flow and makes UI development smooth and easy. React also inherits the main disadvantage of ReactJS, and its community is relatively new. This can limit the possibilities for your project. There are several advantages, though. The main downside is the limited number of people who have tried it.