How does Nextjs work

Next.Js- How it works and its usage!

It is best for you if you have zero to little information about next.js, you have used React in the past, and you’re looking forward to diving extra into the React ecosystem, in particular server-facet rendering. With this let’s start our topic “How does Nextjs work”!
I find next.js a super tool to create web programs, and on the quit of this put up I hope you’ll be as enthusiastic about it as I’m. And I hope it will help you examine next.js!

First, the web page takes longer to emerge as visible to the consumer, due to the fact earlier than the content material loads, all the JavaScript must load, and your utility needs to run to determine what to expose on the page.

Next.js is clever enough to handiest load the Javascript and CSS which are wanted for any given web page. This makes for a good deal quicker page loading instances, as a person’s browser doesn’t have to download JS and CSS that it would not want for the specific web page the consumer is viewing. This will increase overall performance as there is much less for the consumer’s browser to download and the user blessings from seeing the page content material quicker.

In case you are constructing a public website, And you’ve got content and making want to make SEO for the site then using Nextjs Is a great idea. Engines like google are getting higher at going for walks and indexing JavaScript apps, but it is lots better if we can send them content as opposed to allowing them to parent it out.

Next.js is React framework to perform all of this in a very easy way, but it is now not constrained to this. It’s marketed by means of its creators as a zero-configuration, single-command toolchain for React apps.
It offers a commonplace structure that permits you to without problems build a front-end React software, and transparently handles server-side rendering for you.

Process for getting started with Next.js

First of all, for next.js you should have node.js installed on your system and that’s all. Next.js is like any other node.js application — you need npm or Yarn to install dependencies.

First step- you have to create a folder and give it a name of your preference. we will name it nextjs-app.

mkdir nextjs-app

After developing the nextjs-app folder, open it at the terminal. Run npm init command to create the package.json file.

After that, we must deploy our dependencies.

installing next.js, using Yarn, type

yarn add next

// using npm --save

npm i next --save

Then we must install React because next.js makes use of React. The first line beneath makes use of Yarn for the setup.

yarn add react react-dom

npm i react react-dom --save

Two necessary folders pages and static must be created, otherwise next.js won’t work.

mkdir pages static

After this:

next.js-app  -pages  -static  -package.json

After this execute “npm next dev” and open “http://localhost:4000/” on the browser.

So after all this, we have to create a homepage and index.js(entry point).

touch index.js home.js

And you can code your React component for which next.js is used. Next.js has a live reload function. All you want to do is simply trade and store, and next.js will collect and reload the app mechanically for you.

Another way is using create-next-app CLI

npx create-next-app my-app

Main aspects which help next.js perform!

Server-side rendering

Next.js performs server-facet rendering via default. This makes your application optimized. also, you can combine any middleware along with express.js or Node.js, and you may run any database together with MongoDB or MySQL.
Speaking of SEO, next.js comes with a Head thing that allows you to add and make dynamic meta tags. It’s my favorite feature — you could make custom and dynamic meta tags. those make your website able to be listed through engines like google.

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Routers-

This is some other one of the notable capabilities of next.js. when you operate the create-react app, you commonly need to install react-router and create its custom configuration.
next.js comes with its personal routers with zero configs. You don’t need any extra configuration of your routers. Just create your web page within the pages folder and next.js will take care of all routing configurations.

Lazy Loading-

Lazy loading makes your software deliver a better user revel in. now and again the web page might take time to load. The person can also abandon your app if the loading takes extra than 30 seconds.

The way to avoid that is to use some trick to indicate to the consumer that the page is loading, for an instance by means of displaying a spinner. Lazy loading or code splitting is one of the capabilities that allow you to deal with, and control, slow loading so you only load the necessary code on your page.