If you are looking for some best Next.js interview questions, then you are in the right place. We have compiled a list of the best Next.js interview Questions, that will surely help you crack the interview. Read on and All the Best!
Most frequently asked Next.js Interview Questions
Ans: An open-source, compact React.js framework called Next.js makes it easier for programmers to create static and server-side rendering web applications. Zeit came up with it. We can quickly create server-rendered React apps thanks to the Next.js framework, which is built on React, Webpack, and Babel. Your next feature-rich web application can be built with just npm run dev start and without any webpack settings.
Ans: The most common uses for Next.js, a React JS framework, are to create the following apps and websites:
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Ans: In essence, Create-React-App is React with a built-in build system. So it serves as a useful boilerplate. Just to run React, we don't need to worry about setting up Webpack, Babel, or other dependent packages. Other than that, we must build packages on top of Create-React-App if we need additional functions like routing, server-side rendering, and so forth.
A whole stack React framework is Next.js. It is pre-loaded with useful features including effective routing, build system, API routing, server-side rendering, and many others that perform well in a production context.
Ans: 'amp HTML-validator' is used during development to validate your AMP pages. When the Next.js is launched, a terminal will show any warnings and fatal errors. The "next export" process validates AMP pages as well, and if improper AMP validation is present, errors will be reported in the terminal and the "next export" will fail.
Ans: There are two methods for turning on AMP in Next.js.
Ans: There are many ways to fetch data in Next.js but the framework itself suggests using the async function getInitialProps to fetch data from any location. The context object that getInitialProps obtains when we use it to retrieve data has the features shown below:
Ans: In general, code splitting is one of webpack's most alluring features. This feature makes it easier for us to divide our code into different bundles that can only be loaded in parallel or on-demand. This primarily serves to create smaller bundles and makes it easier to manage resource load prioritization, both of which have a significant impact on load time.
Code splitting primarily uses three methods:
It is primarily used to allow unneeded code to load on pages that can never do so.
Ans: It is a library for writing scoped and encapsulated CSS that is used by developers to style Next.js components. Developers can add, remove, and modify styles without being concerned about unintended consequences thanks to Styled JSX, which prevents styles from being introduced to one component from affecting other components.
Ans: By dividing an application into smaller, more manageable pieces known as lambdas, Serverless mode implementation greatly enhances a program's scalability and readability. A "pay for what you use" philosophy, also encourages affordability.
Next.js's Serverless mode must be enabled by adding the "serverless" build target to next.config.js.
Ans: Yes, static CDN is supported by Next.js 5 and higher. Next.JS now seamlessly loads assets from CDN thanks to the assets prefix.
Ans: It's simple to code; Next. js takes less code than React and other React-compatible frameworks. Less code, greater readability, and better project management are all benefits of this approach, which only requires developers to create the page and link to the component in the header.
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