Next Js: overview

Next Js: overview
Written by Nilima PaulDecember 14, 2021
8 min read
NextJs
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Nilima Paul

Data Team

In this blog post, we will know about Next Js

What is NextJS?

NextJS is a React structure, which means is a stage for creating programming applications by utilizing React library.

It has a great deal of highlights which improve React applications more straightforward.

As a developer, we don't have to begin without any preparation when there are apparatuses intended to assist us with our activities. Systems are programming that is created and utilized by designers to construct applications, so NextJS is one of them.

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Key Features of NextJS

NextJS offers many benefits for the React developers:

  • page-based routing system (with support for dynamic routes)

With NextJS we don't need to care about writing a code for routers for the pages, we just create a page in a special folder and NextJS provides it with routing, simple as that :)

  • pre-rendering, both static generation (SSG) and server-side rendering (SSR) are supported

Server-side rendering (SSR) is preparing of the content of a page on a server, while a one-page React application uses client-side rendering (CSR). The problem with CSR is that it's not actually SEO friendly because search engines will not see the actual content of the page. By using SSR in NextJS we can avoid such issues as a flickering page while data fetching and our website content will be SEO friendly.

  • built-in CSS and Sass support, and support for any CSS-in-JS library
  • development environment with Fast Refresh support
  • full-stack capabilities

NextJS makes it easier for React developers to add back-end code to the project. It is very easy here to add our code for storing data, getting data, authentication, etc.

Why Use NextJS?

This question appeared in my head many times before I wasn't familiar with NextJS. I was pretty sure that React library itself is enough to build an application. But as I was developing my web developer's skills and started to build highly-scaled large applications, I had to import any additional libraries together with React (for example, for routing).

next makes the development of large React applications easier since it provides many additional features, which we will discuss below in ddetail This framework solves many common problems and simply makes the life of React developer easier :) We still write React code and use React features, but also together with that we are provided with lots of built-in features to solve common problems and clear instructions on how to use them.

Pros of NextJS

At last, we have pros for developers, arising from many features that NextJS offers. Devs are incredibly excited about reusable components which cut development time and cost.

However, there’s more:

  • CSS support built-in – developers can import CSS files from a JavaScript file.
  • Built-in Image Component and Automatic Image Optimization – this feature automatically optimises images using the new next/image component.
  • Community support – the popularity of NextJS is growing, and so is the number of its contributors. This is much help because instead of solving something from scratch, developers can look for a solution that is probably already available.
  • Fast Refresh – fast, live-editing experience.
  • Hybrid of SSR and SSG – prerender pages at build time or request time in a single project.
  • Incremental Static Generation – it allows developers to update existing pages by re-rendering them in the background as traffic comes in. This way, static content can become dynamic.
  • TypeScript support – automatic TypeScript configuration and compilation.
  • Zero Config – focus on the business logic of your NextJS app instead of the application logic. And to help you, it provides automatic compilation and bundling. In other words, Next is optimised for production right from the start.

CONS Of NextJs

Although NextJS is developing rapidly and many features arrive, it still has some cons and issues which you can see below:

  • Cost of flexibility – Next JS does not provide many built-in front pages, so you have to create the whole front-end layer from the ground up.
  • Development and Management – if you want to use NextJS to build an online store, yet you don’t have an in-house team of developers, you will need a dedicated person to handle the development and management afterwards.
  • It’s opinionated – NextJS is limited to use only its file-based router, you can’t modify the way it deals with routes. Therefore, if you want to use dynamic routes, you need Node.js server.
  • Lack of built-in state manager – therefore, if you need a state manager, you also need Redux, MobX or something like that.
  • Low on plug-ins – in comparison to Gatsby.js, you cannot use many of easy-to-adapt plugins.
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