React is a JavaScript library for User Interfaces, while Next is a full-stack framework build on top of React, You can think of it like a enhanced version of React with features like routing, server-side rendering, and better SEO capabilities.
To know the difference between React.js and Next.js first you have to know about what is React, what is the working or React.
Reactjs Core
React uses a Virtual DOM, a lightweight copy of actually DOM (Document Obeject Model). This lets React efficiently updates only the parts of the UI that changes, rather than reloading full page.
Nextjs Core
NOTE: WE WILL ONLY TALK ABOUT NEXT FRONTEND BECAUSE THATS THE TOPIC TODAY.
Next.js builds on React by adding powerfull features like server-side rendering (SSR), and automatic static optimizations
In React, routing is manual you have to set it up with tools like react-router. In Next.js you just create a folder in the app directory and name it based on your route name (ex: about,dashboard), No boilerplate code needed.
For SEO and performance, Next.js uses SSR and static generation. It can pre-render HTML on the server, which loads faster and is more SEO-friendly. Dynamic pages can also be server-rendered in chunks ā Next figures out what to serve based on the user's request and only sends what's needed. If a page uses use client, the server sends that component's JavaScript to the browser, which then renders it client-side.
By the way on what tech do you build frontend?
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