Why we use React Js?
What is React JS?
Note: readers often ask “is React JS frontend or backend?” The answer is: definitely frontend. You can keep this straight by remembering the “on screen” aspect of UIs—React is used exclusively for “client side” programming (building things that a user will see on screen in their browser window), which makes React JS a frontend library.
- Virtual DOM
To get an even better understanding of React JS and why you should use it, let’s take a look at both.
This isn’t just a matter of convenience, though—using JSX to update a DOM leads to significant site performance improvements and development efficiency. How? It’s all about the next React feature, the Virtual DOM.
Considered the next biggest leap in web development since AJAX, the virtual DOM (short for Document Object Model) is the core reason why React enables the creation of fast, scalable web apps. Through React’s memory reconciliation algorithm, the library constructs a representation of the page in a virtual memory, where it performs the necessary updates before rendering the final web-page into the browser.
What Does React JS Code Look Like?
If all of this makes sense but you’re still wondering, “what IS React code?” you can get a visual idea of what React looks like straight from this React examples website. Each of the projects listed here gives an idea of what’s possible with React JS and a look at the source code used to build it.
Toolkit for Developers.
It has made a widespread toolkit for the developers. These tools allow users to design and debug any problems with ease. The toolkit also has a browser extension that can be downloaded and used for both Chrome and Firefox. This extension, called React Developer Tools, is great for developers that want to analyze the initial, new and reactive components and see what the possible outcomes are.
Easy to learn