Add TypeScript to NextJS

To add TypeScript to a Next.js app:

npm install --save-dev typescript @types/react @types/node

Rename your .js files to .tsx or .ts. Next.js will automatically detect TypeScript and provide type-checking support

Creating a Simple Page in Next JS:

This example creates a basic page that displays “Hello, World!”. This page component is named index.js and is located in the pages directory.

pages/index.js

Javascript
import React from 'react';

export default function Home() {
  return (
    <div>
      <h1>Hello, World!</h1>
    </div>
  );
}

Getting Started with Next JS

NextJS is an open-source React framework for building full-stack web applications ( created and maintained by Vercel ). You can use React Components to build user interfaces, and NextJS for additional features and optimizations. It is built on top of Server Components, which allows you to render server-rendered React components to the client. This means your pages can be more interactive and dynamic, while still being fast and performant. One of its notable features is the NextJS App Router, which facilitates routing within your application. This article will dive into NextJS App Router, its components, and implementation, and provide a code example and a brief output.

Table of Content

  • What Features NextJS Gives You?
  • What Features Does NextJS Not Have?
  • What is the NextJS App router?
  • How to Create a NextJS App?
  • NextJS Scripts
  • Add TypeScript to NextJS
  • Pages and Routes in Next JS
  • Links and Navigation in Next JS
  • Route Groups in Next JS
  • SEO in Next JS
  • API Routes in Next JS
  • Data fetching in Next JS
  • Requesting Data in Next JS
  • Conclusion

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What Features NextJS Gives You?

Server-side Rendering (SSR) and Static Site Generation (SSG): Next.js empowers you to choose how your pages are generated. SSR allows for dynamic content personalized per user, while SSG offers pre-rendered static pages for lightning-fast load times.Automatic Code-Splitting: Next.js intelligently breaks down your application into smaller bundles, ensuring only the necessary code is loaded for each page, resulting in a faster user experience.File-Based Routing: Routing is intuitive in Next.js. Each file in the pages directory corresponds to a route in your application, making the structure clear and easy to manage.Built-in Data Fetching: Next.js provides functions like getStaticProps and getServerSideProps for fetching data at build time or on each request, giving you flexibility for different content types.Automatic Image Optimization: Next.js automatically optimizes images for various screen sizes and devices, improving website performance and user experience.TypeScript Support: Next.js seamlessly integrates with TypeScript, providing type safety and improved development experience for TypeScript users.Static Site Generation (SSG): Next.js supports static site generation, where pages can be pre-built at build time, enhancing performance and reducing server load....

What Features Does NextJS Not Have?

Built-in State Management: While Next.js is tightly integrated with React, it doesn’t come with built-in state management solutions. Developers can use libraries like Redux or React Context for state management.Built-in Styling Solution: Next.js doesn’t include a built-in solution for styling components. Developers can choose from various styling solutions like CSS Modules, Styled Components, or Tailwind CSS....

What is the NextJS App router?

The NextJS App Router is a core component of the Next.js framework that handles routing within your application. It enables you to define and manage the routes your application will respond to. Next.js follows a file-based routing system, making it an intuitive and efficient way to structure your application’s navigation. It offers various components and features to create robust and flexible routing in your Next.js application....

How to Create a NextJS App?

To create a NextJS app, you can use the following steps:...

NextJS Scripts:

Next.js provides several scripts to manage your application:...

Add TypeScript to NextJS:

To add TypeScript to a Next.js app:...

Pages and Routes in Next JS

1. Routing – Next.js uses a file-based structure router where folders define the routes. A special page.js file is used to make route segments...

Links and Navigation in Next JS

Linking and Navigating – Next.js provides two primary methods for linking and navigating between routes:...

Route Groups in Next JS

A Route group can be created by wrapping the folder name with parenthesis (folderName) which helps in...

SEO in Next JS:

NextJS offers built-in SEO optimizations such as server-side rendering and automatic code splitting, which can improve search engine visibility. Developers can also use meta tags and structured data to further enhance SEO....

API Routes in Next JS:

NextJS allows you to create API routes to handle server-side logic separately from your main application logic. API routes are stored in the pages/API directory and can be accessed via HTTP requests....

Data fetching in Next JS

There are four ways to fetch data...

Requesting Data in Next JS:

Client-side: Next.js integrates well with libraries like fetch or axios for making API requests directly from the browser. This approach is ideal for fetching data that doesn’t require server-side processing....

Conclusion

Remember to check the official NextJS documentation and release notes for any specific changes and improvements in version 13 and any new routing features. The framework may have evolved since my last update....