The ‘Robust’ word is extensively used for cross platform app development frameworks. React is one of them. But some specific reasons make React Apps scalable. Let’s find out!
React is a framework based on JavaScript for developing applications across platforms. While React JS is used for web application development, React Native is used for native application development. React JS is well known for creating large-scale applications based on component-based architecture. That’s going to be the main point of conversation here.
What Are We Talking About?
React is a framework, for developing apps/websites, across platforms. It uses a modular approach, faster rendering and improved performance. All good so far. It also enforces a one-way data flow, making it easier to understand and debug how data changes propagate through your application – useful for creating highly functional and scalable applications.
The Reason Bbehind ReactJS’ Scalability
The presence of composable UI elements ensures scalability. They are easy to customize, and extend the functionality of the application.
Server-side rendering improves code optimization and makes the app responsive.
ReactJS also features a state management library – Redux, which centralizes and manages the application state, making debugging and scalability easier. It ensures a predictable data flow and simplifies tracking state changes across components. React’s built-in Context API is used for managing the state for smaller applications.
React helps with splitting code. This technique allows splitting the JavaScript bundle into smaller chunks, which are then loaded on demand or in parallel. It takes place in two ways:
React.lazy() and Suspense:
- React.lazy(): This function loads components dynamically. Instead of importing a component directly, wrap it with React.lazy() and provide a dynamic import function. This tells Webpack (or another bundler) to create a space for that component.
- Suspense: This component is used in conjunction with React.lazy(). It displays a fallback UI (like a loading indicator) while the dynamically imported component is loading.
Code splitting helps in achieving faster initial load times, by loading only the essential code upfront, to significantly improve the time it takes for the application to become interactive. It makes the application run even on slower networks. Smaller chunks of code load faster, which is especially beneficial for users on slower connections.
React apps use routing libraries – React Router. It loads the code for specific routes only when the user navigates to them. This improves the initial loading performance of the application, also known as code re-routing. Routing allows creation of single-page applications with multiple views and efficient route-based code splitting.
ReactJS alleviates better caching by hiving up smaller chunks of code, so that older users might not have to download it again. Often in the process the bundle size is optimized to avoid unnecessary code for parts of the application the user hasn’t even accessed yet.
Talking about the component structure one more time, those small chunks of reusable components promote reusability, maintainability and testability. Sometimes these components are dumb (called as presentational components) and at other times these are smart (container components), geared to handle data fetching and logic.
Here higher order components pitch in to reuse the same identical logic across different components without code duplication.
React Context API is used for managing the state of small apps. Redux or Zustland libraries are used for managing the state of larger applications that have complex state management. These libraries provide a centralized store for managing state.
React implements memoization, code splitting and virtualization to optimize performance. React.memo or useMemo is used to memoize components to prevent unnecessary re-rendering. React has libraries like ‘react-window’ or ‘react-virtualized’ to render large lists. It also has dynamic imports (import()) to load components on demand, and reduce the initial bundle size.
The way you test is ensuring that the resultant application will be robust and smoke-proof. Jest and React Testing Libraries are used to create unit and integration test cases.
ReactJS adopts a folder structure in which codebase is organized by domain or feature, instead of file type. This makes it easier to locate and manage related code.
Advanced ReactJS makes use of linting and formatting via ESLing and Prettier to enforce consistent coding standards and Prettier to format your code automatically. This improves code readability and maintainability.
ReactJS also uses the browser’s developer tools to monitor performance and identify and address performance bottlenecks.
State management libraries integrate well with external state management libraries like Redux and Context API, sharing state across components.
What Else?
ReactJS Web services facilitate web application development by enhancing user experience with responsive interfaces, driving engagement, optimizing performance, integrating third-party services and APIs, and securing applications.
React applications are rendered on the server, improving SEO and providing a faster initial page load, useful for developing large-scale applications; An advanced Reactjs development company provides various performance optimization techniques, such as (1) shouldComponentUpdate, and (2) PureComponent;
Closure
This blog covered advanced methods within ReactJS aimed at building applications that handle the growth and complexity of an Advanced ReactJS project effectively. React’s features (1) component-based architecture, (2) virtual DOM, (3) efficient state management, and (4) performance optimization techniques make it a great choice for building scalable applications.
