Why is Next.js so fast?

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Barry Dyngles

Next.js is a popular React framework that is used for developing dynamic web apps with high performance. Its intuitive and powerful features make it one of the top frameworks for web development, but what specifically makes it so fast? In this article, we will explore the reasons why Next.js is such a speedy framework, from server-side rendering to code splitting, data fetching, and caching.

Server-Side Rendering

The key factor in Next.js’ speed is its server-side rendering capabilities. When an HTML page is rendered on the server before being sent to the client, the client no longer has to wait for the JavaScript code to be downloaded and rendered. This shortens the page load time significantly.

Code Splitting

Code splitting is another feature of Next.js that gives it an added boost. Through code splitting, developers are able to split their code into smaller chunks, which are then loaded on demand. This helps to reduce the initial page load time and also the overall bundle size, creating a better user experience.

Data Fetching

Next.js also provides an API for data fetching, which enables developers to fetch external data while the page is loading. This helps to improve page load times by reducing the amount of time it takes to fetch the data. Additionally, it improves the user experience since the data is already available once the page is loaded.

Caching

Caching is another important aspect of Next.js that helps to improve performance. By storing requested resources in a cache, they can be served quickly when requested. This helps to reduce page load times, thereby improving the overall performance of the web application.

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Conclusion

Next.js is an excellent choice for developing high-performance web applications. Its server-side rendering, code splitting, data fetching, and caching features all contribute to its speed, helping to reduce page load times and improve user experience. Therefore, Next.js is one of the best frameworks for developing dynamic web apps with high performance.

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