Test Next.js

Test Next JS with answers to assess your knowledge and prepare for job interviews. Assess your technical level in 20 minutes.

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Test details

Intermediate

August 2024

15 minutes

4.6/5(37)

Welcome to this quiz dedicated to Next.js, probably the most well-known React framework with its 115k stars as of writing!

Through this test, you can assess your own knowledge, ranging from the fundamentals of routing with the introduction of the "App router" in Next 13 to the advanced use of features like server components, image optimization, and Incremental Static Regeneration (ISR).

Whether you're an experienced developer looking to validate your skills or a beginner eager to learn, this quiz is for you. It is designed not only to evaluate your theoretical understanding of Next.js, but also to encourage you to think about the practical application of these concepts in the real world, and to learn from your mistakes with clear, sourced explanations!

So, ready to dive into the world of Next.js? Let's go!

As usual, your feedback is valuable, so feel free to submit new questions or share your remarks on the existing ones!

This test consists of 20 questions randomly selected from a database of 28 questions in Next JS.Discover all our interview questions and answers here

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Test author : Anas Ismaili

I am a 21-year-old full-stack developer and have been passionate about coding since childhood. I have no corporate experience, but despite that, I develop my projects on my own. I discovered Next.JS while planning to create several SaaS products, with the principle of finding problems faced by a certain category of people and then developing solutions for them! Moreover, feel free to check out my portfolio at https://ismailianas.com as a company, I would be delighted to discuss with you about a position (which I am actively seeking, by the way). It was then that I had this reflection that many developers have before starting a project, 'But which stack to choose?!'. That's when I start to struggle for a long time to find THE technology, and that's where more than a year ago, I stumbled upon Next.JS, a young, powerful framework based on React, that does better than a React app."

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Sample question

In a Next.js application in Page Router, you have a getStaticProps function in a blog.js file in the pages directory. What is this function for in this context?

// pages/blog.js
export async function getStaticProps(){
  const posts= await fetchBlogPosts()
  return{
    props:{ posts },
  };
}

export default function Blog({ posts }){
  return(
   <div>
     {posts.map(post=><div key={post.id}>{post.title}</div>)}
   </div>
  );
}