# What is React JS?

React Lesson 01

🌟 𝗪𝗵𝘆 𝗥𝗲𝗮𝗰𝘁 𝗶𝘀 𝘁𝗵𝗲 𝗚𝗼-𝗧𝗼 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸 𝗳𝗼𝗿 𝗠𝗼𝗱𝗲𝗿𝗻 𝗨𝗜 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 🌟  
  
If you've ever wondered why React has become so popular in the front-end development world, you're not alone! Let's break it down step-by-step:  
  
🔍 𝗪𝗵𝗮𝘁 𝗶𝘀 𝗥𝗲𝗮𝗰𝘁? React is more than just a JavaScript library for building user interfaces—it's 𝗱𝗲𝗰𝗹𝗮𝗿𝗮𝘁𝗶𝘃𝗲, 𝗰𝗼𝗺𝗽𝗼𝗻𝗲𝗻𝘁-𝗯𝗮𝘀𝗲𝗱, and designed to be 𝘀𝘁𝗮𝘁𝗲-𝗱𝗿𝗶𝘃𝗲𝗻. Its component-based architecture allows you to build complex UIs by combining small, reusable pieces, just like LEGO blocks.  
  
💡 𝗪𝗵𝘆 𝘂𝘀𝗲 𝗥𝗲𝗮𝗰𝘁?  
• 𝗖𝗼𝗺𝗽𝗼𝗻𝗲𝗻𝘁-𝗕𝗮𝘀𝗲𝗱 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲: From buttons to entire search bars, React components form the building blocks of your UI.  
• 𝗗𝗲𝗰𝗹𝗮𝗿𝗮𝘁𝗶𝘃𝗲 𝗦𝘆𝗻𝘁𝗮𝘅 (𝗝𝗦𝗫): You define how your app should look based on its state, and React takes care of the rendering for you—no need to manually manipulate the DOM!  
• 𝗥𝗲𝗮𝗰𝘁 𝗥𝗲-𝗥𝗲𝗻𝗱𝗲𝗿𝘀: When the state changes, React 𝑟𝑒𝑎𝑐𝑡𝑠 by updating the UI automatically, making sure everything stays in sync.  
• 𝗟𝗶𝗯𝗿𝗮𝗿𝘆 𝗼𝗿 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸? While React itself is just the "view layer," it’s backed by a 𝗵𝘂𝗴𝗲 𝗲𝗰𝗼𝘀𝘆𝘀𝘁𝗲𝗺 of tools and libraries, making it as powerful as any framework.  
  
🚀 𝗪𝗵𝘆 𝗶𝘀 𝗥𝗲𝗮𝗰𝘁 𝘀𝗼 𝗣𝗼𝗽𝘂𝗹𝗮𝗿?  
React's rise in popularity is undeniable, and it’s backed by industry giants like 𝗠𝗲𝘁𝗮 (formerly Facebook). Its adoption by large companies has driven smaller businesses to follow, leading to an 𝗶𝗻𝗰𝗿𝗲𝗱𝗶𝗯𝗹𝗲 𝗱𝗲𝗺𝗮𝗻𝗱 𝗳𝗼𝗿 𝗥𝗲𝗮𝗰𝘁 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿𝘀.  
And let’s not forget the React developer community—whether it's Stack Overflow questions, tutorials, or third-party libraries, there’s always support available.  
  
🌐 𝗔 𝗚𝗮𝗺𝗲-𝗖𝗵𝗮𝗻𝗴𝗲𝗿 𝗶𝗻 𝗙𝗿𝗼𝗻𝘁-𝗘𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 React has transformed web development and influenced the creation of other modern frameworks. It’s become the standard for developing dynamic, state-driven user interfaces across the web.  
  
Check these Slides as well, these are super helpful.

![](https://lh7-rt.googleusercontent.com/docsz/AD_4nXcnErj0PZm9M7I8agYIs80X09kGWW0wUvi1tS-Dmk1rzmVPTktCyfZaDkFUjxLXVHxKdChdKTfxGd75pmeZEv9KXNjjcxRUi-ug7fqdXPWyivuXwfPV5HSudfKBpTMgQMhyYVzdmoA2j1RxFKxBfUXq2iQ?key=KPMhCeiPFoDgMg7gRUvNQQ align="left")

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![](https://lh7-rt.googleusercontent.com/docsz/AD_4nXdX-S2x6edwTlVnz0b1bCoJ2MQQQIUZ7G94h1ydlzNT85iwtvaWbRwROoxbeMeJ1qr8Sw9JpzrZm0LPzsHvyC5R44pvx4U5U4XUls9swJu6bisACXxpZtv88Cn-BQWWvAA2EtFypORgcS_2pY5YB0hyJ_8?key=KPMhCeiPFoDgMg7gRUvNQQ align="left")

![](https://lh7-rt.googleusercontent.com/docsz/AD_4nXdjDQByP82D9f8rJuQG8bIbjSv4DNtLVjOK_quxs1SAI7jbJ5jrj088D0nbSXnU6uaz6Vy6OWwbij4dX5KRlDHUU6EBCY9MS9dQ_jRUPsCGzEmzeicSGXLwH6pZDB4dLssdm5Rpoa8IoeROjOZeox9jvo0?key=KPMhCeiPFoDgMg7gRUvNQQ align="left")

![](https://lh7-rt.googleusercontent.com/docsz/AD_4nXeMrp4qNH9s2n-5gpJLo4kVFJ47j3tQ2gaclBjqg_gO7n4zbh9cE20gaWu8wCIquSa81qaGgZIcRIkPfB38b6NDUCu8oUq4YttnwUefY7TSj0y2LHTX-NcgUQpKmJPDM6RQ6A8EjMG77yPJDcqlHocC4O4?key=KPMhCeiPFoDgMg7gRUvNQQ align="left")

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![](https://lh7-rt.googleusercontent.com/docsz/AD_4nXdV-_hzaPahQzccSseZYyr8fhSJPyyHYhihrFmDsxjKgTctl1_u50Tia19Kh-2bCgMKM8zhdIUWIoV1eOseu7avx8w8Q_orHDCPLY73WGpLspcd6Z8lc1nHyKL3TJqBc6uGSRqb1jj8CbYtBBlOEJgicA?key=KPMhCeiPFoDgMg7gRUvNQQ align="left")

Follow me on LinkedIn for more React JS stuff.  
[https://www.linkedin.com/in/zeeshan-safdar-dev/](https://www.linkedin.com/in/zeeshan-safdar-dev/)