A simple guide to React.js and Next.js

React.js and Next.js are popular frontend technologies or tools used to build websites or web applications, particularly in the front end. If you're new to web applications this write-up can be useful in understanding what these technologies do and their differences.
React.js, also called React, is a javascript library created by the popular Facebook. It makes things easier for developers by breaking down user interfaces(UIs) into feasible, reusable parts known as components, enabling programmers or developers to create UIs. Components are just like puzzles or LEGO blocks that we can put together to create a complete website or web application.
Next.js is a javascript framework built on top of React. Created by Vercel, it basically makes React better by adding extra features that make building complex websites easier. It handles issues like rendering web pages on the server and generating static pages ahead of time.
React.js is more flexible than Next.js meaning React allows you to configure and set up the project the way you like it making it possible to choose different libraries and tools that you need meanwhile Next.js comes with a lot of built-in features and conventions, limiting the use of manual setup and configuration. Next.js helps to render services like simple routing, server-side rendering, and static site generation making the creation of SEO-friendly websites.
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