It allows you to set the loading priority for third-party scripts. Instead of using the default tag, you can use the next/script component of Next.js. These scripts can further slow your Next.js app. note: if youre using next.js 9.3 or newer, we recommend that you use getstaticprops or getserversideprops instead of. In addition to npm dependencies, many applications use third-party scripts like Google Analytics, Google AdSense, and Bootstrap. If you have multiple images in a page, you can prioritize loading using the next/image component. Using the next/image component, you can add a blurred placeholder for any image using the placeholder prop. In other words, this function allows you to fetch your data from the API and return the fetched data to the page component as a prop.Įxample: // This function will be called by the serverĮxport async function getServerSideProps( to turn it off. This function will be called by the server on every request, returning an object that will be passed to the page component as a prop. You can do your data-fetching work inside this function.getServerSideProps function takes a context object as a parameter that contains page data such as params, res, req, query, etc. Next.js provides an async function named getServerSideProps that we can use to render any page on the server and return static HTML to the client. SSR will also improve application performance, especially on mobile devices. Using server-side rendering will help your app reduce the time required to render the first page on the client side, so the user will see the content of your page much faster. Server-side rendering (SSR) is a technique used to render the initial HTML of a webpage on the server before delivering it to the browser. How to Use React Context for State Management in Next.js 13 React’s built-in Context API is perfect for state-sharing. Fortunately, developers can follow a number of best practices to improve the speed of their Next.js applications. When the server needs to send additional assets (for example images) during the initial round trip, the application performance degrades. It will be calling getLayout first and then the context, so the value of it will be initially the default (fallback) value (its like doing foo(bar()) and expecting that foo will be called before bar). While the framework is simple, developers still struggle to increase the speed of their applications.Īn application’s speed is strongly related to the amount of time it takes to serve the application code, styles, and data to the client in the first round trip. Note that calling getLayout inside the Context could lead to errors if the getLayout function uses hooks or stuff that depends on a parent element. It simplifies the process of creating hybrid applications with client-side as well as server-side rendered pages. This framework allows developers to build powerful web apps with JavaScript without worrying about building the back-end infrastructure. In recent years, web application development has undergone a radical transformation due to the rise of Next.js.
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