why root url is always active in react

Why Root URL is Always Active in React

If you're working with React, you might have noticed that the root URL of your application is always active. This means that even if you navigate away from the root URL, React will still render the components on the page. So why is this the case?

The Root URL and the Virtual DOM

In React, the root URL is the entry point of your application. When you load your application, React creates a virtual DOM (Document Object Model) tree that represents your application's UI. This virtual DOM is a lightweight representation of the actual DOM, and it's used by React to update the UI efficiently.

When you navigate away from the root URL, the virtual DOM is still present in memory. This means that React can still access the components and render them on the page, even if the URL has changed. This is why the root URL is always active in React.

Multiple Ways to Handle Navigation

While the root URL is always active in React, there are multiple ways to handle navigation in your application. One common approach is to use React Router, which allows you to define routes for different pages in your application.

import { BrowserRouter as Router, Switch, Route } from "react-router-dom";

function App() {
  return (
    
      
        
        
        
      
    
  );
}

With React Router, you can define different routes for different pages in your application. This allows you to handle navigation more effectively and keep your code organized.

Conclusion

The root URL is always active in React because it's the entry point of your application. Even if you navigate away from the root URL, React can still access the components and render them on the page. However, there are multiple ways to handle navigation in React, including using the React Router library.