The Great Debate: Next.js vs React
Tags: react, javascript, nextjs
Published: 2022-10-21 05:56:12

Next.js is a popular tool for front-end web development that offers many benefits compared to other frameworks. It is fast, reliable, and easy to use, making it a great choice for developers who want to create web applications quickly and efficiently. 

However, there are some drawbacks to using Next.js that should be considered before deciding if it is the right tool for your project.

## How React and Next.js Differ


React is a Javascript library for building user interfaces, while Next.js is a production framework for React that expands its capabilities and streamlines the development process.

React has a dedicated framework called Create React App (CRA), an application used to set up React projects that include tools like ESlint.

Next.js is a React-based framework that builds server-side rendered apps. React is still the app's foundation, but the structure and navigational mechanisms - the architecture - are defined by Next.js.

Next.js moves the rendering aspect to the server, so the client doesn't have to process that information. This improves performance and SEO because the server pre-renders the pages and then sends the final HTML to the client, resulting in minimal JS, which means less code to load. Users can expect a faster website, but crawlers can also see your website more quickly and index it accordingly.

Pre-rendering has two approaches: Static Generation and Server-side rendering (SSR). Static Generation is and will always be the best performance-wise. Pre-rendering means the page is generated at build time and re-used for every request. In practice, static pages are usually served over a content delivery network (CDN), making it super fast.

SSR is preferable under certain circumstances, such as presenting frequently updated dynamic data: the page will be generated over each request and then sent to the client.

While SSR is still better than client-render apps, it has a lower performance than Static Generation, so it's important to know when to use SSR over Static Generation because otherwise, you won't be able to obtain the benefits of NextJS.

Next.js also allows hassle-free complex structures using a folder system, making the process more intuitive and simple. On the other hand, CRA builds single-page applications right out of the box, as long you are not concerned about routing. The main difference between CRA and NextJS is that NextJS will run on the server while CRA will run on the client's browser, which imposes significant changes to your code.

## React Advantages
React has a lot of advantages that make it a great choice for front-end development. Here are some of the most notable:

- East to code: JSX is a syntax extension of JavaScript that allows you to write HTML-like code inside your JavaScript code. This makes your code more readable and easier to write.

- Components: React is all about components. Components make your code more modular and reusable.

- Virtual DOM: React uses a virtual DOM, which is a JavaScript representation of the actual DOM. This makes React's rendering performance very fast.

- One-way data binding: React uses one-way data binding, which means that data flows in one direction only. This makes your code more predictable and easier to debug.

## React Disadvantages
- React is not a full-fledged framework: While React provides a lot of features, it is not a full-fledged framework. This means that you will need to use other libraries and frameworks in order to build a complete web application.

- Lack of a standard way to structure applications: While there are some conventions that are often followed when structuring a React application, there is no official way to do so. This can lead to inconsistency and confusion among developers on a team.

- Difficult to debug: React's use of a virtual DOM can make debugging difficult, as the component tree can be hard to follow.


## Next.js Advantages
Next.js is a JavaScript web application framework based on React.js. It is a lightweight framework that provides a way to quickly build server-rendered React applications. Next.js is also known for its ease of use and its ability to scale.

- **Quick set-up:** All you need to do to get started with Next.js is create a single file called "next.config.js" in the root of your project. This file tells Next.js what your project is about and how you want it to be built.

- **Automatic code splitting:** Next.js automatically splits your code into smaller bundles so that your pages load faster.

- **Server-side rendering:** Next.js can render your React components on the server so that your pages load faster and are **more search engine friendly.**

- **Static exporting:** Next.js can generate static versions of your pages so that they can be deployed to a static hosting platform like GitHub Pages or Netlify.

- **Babel and TypeScript support:** Next.js supports both Babel and TypeScript out of the box so that you can use the latest JavaScript features in your projects.

- **Styling options:** Next.js provides a variety of options for styling your components, including CSS-in-JS libraries like styled-jsx and emotion.

## Next.js Disadvantages
There are some key disadvantages of using Next.js that are worth noting:

- Routing: Next.js routing system is mainly based on files. In some cases, this might not be enough. Node.js can be used to create dynamic routes, so developers must be proficient in using it.

- Lack of documentation: While the Next.js documentation has improved over the past year, it still lags behind other popular frameworks like React.

- Small community: Next.js is a relatively new framework and as such, has a smaller community than some of the other popular options like React. This can make it harder to find answers to your questions and get help when you run into problems.

If you're looking for a tool that will help you build applications that are fast, highly customizable, and easy to edit, with improved SEO capabilities, then you should consider Next.js. This tool is especially beneficial for development teams that already work with React and are open to applying a new tool to their workflow.

## Conclusion
Next.js is a great tool for front-end web development that offers many benefits compared to other frameworks. It is fast, reliable, and easy to use, making it a great choice for developers who want to create web applications quickly and efficiently. However, there are some drawbacks to using Next.js that should be considered before deciding if it is the right tool for your project.