Rendering JSX with JavaScript for React Components

🚀 Creating a Functional Component (JavaScript) Functional components are JavaScript functions that return React elements. They are a simpler and more concise way to define components, especially for components that only need to render UI based on props. Functional components are often preferred for their readability and testability. They are also the foundation for React Hooks, which allow you to use state and other React features in functional components. #JavaScript #WebDev #Frontend #JS #professional #career #development

One UI rule I always follow: ❌ Don’t hard-code styles ✅ Build reusable components Whether it’s React, Next.js, or Vue — reusable UI saves time, money, and sanity. This is how long-term products stay consistent. #ReactJS #NextJS #VueJS #JavaScript #ComponentBased #WebDevelopment #DesignSystems #ReusableComponents

I’ve had a lot of people ask how React rendering actually works. So I recorded a short video where I walk through it visually. No code. No theory overload. Just a clear, step-by-step view of what happens when React renders and re-renders a component. If rendering has ever felt confusing or “magical,” this video should make it click. Watch the video and let me know: What part of React rendering was unclear before this? Connect with me to talk modern frontend and React workflows: Shivam Kori #React #ReactJS #FrontendDevelopment #WebDevelopment #JavaScript #LearningInPublic #DeveloperEducation #BuildInPublic

🚀 Selecting DOM Elements with `querySelector` and `querySelectorAll` (JavaScript) The `querySelector` and `querySelectorAll` methods allow you to select DOM elements using CSS selectors. `querySelector` returns the first element that matches the specified selector, while `querySelectorAll` returns a NodeList containing all elements that match the selector. These methods are powerful tools for targeting specific elements within the DOM based on their tags, classes, IDs, or other attributes. Remember that `querySelectorAll` returns a static NodeList, so changes to the DOM after the initial selection won't be reflected in the NodeList. #JavaScript #WebDev #Frontend #JS #professional #career #development

SSR vs CSR is NOT about frontend vs backend. It’s about when and where your UI is rendered. If you’re using Next.js, understanding this difference is non-negotiable in 2026. Most devs misunderstand this : When we talk about Client-Side Rendering (CSR) and Server-Side Rendering (SSR), we often oversimplify it. CSR - Browser gets an empty HTML shell - JavaScript loads - UI renders in the browser SSR - Server sends HTML with content - Browser paints UI immediately - JavaScript hydrates later Here’s the part many miss: - SSR does not remove JavaScript from the equation. - It only shifts initial rendering to the server. SSR improves first paint and SEO, but interactivity still depends on client-side JavaScript. That’s why hydration exists. #WebDevelopment #FrontendDevelopment #NextJS #JavaScript #ReactJS #SoftwareEngineering #ServerSideRendering #ClientSideRendering #Hydration #WebPerformance #ModernWeb

🚀 Iterating Over Arrays: forEach method (JavaScript) The `forEach()` method is a higher-order function that executes a provided function once for each element in an array. It takes a callback function as an argument, which receives the current element, its index, and the array itself. `forEach()` is a convenient way to perform actions on each element of an array without explicitly managing a loop counter. Learn more on our website: https://techielearns.com #JavaScript #WebDev #Frontend #JS #professional #career #development

Day 16 – JavaScript Challenge Built a Star Rating component using React, focusing on user interaction and state-driven UI updates. This project helped me understand how dynamic components respond to user actions in real time. What I implemented: *Interactive star rating system *Hover and click-based UI behavior *State management using React hooks *Reusable and scalable component design Step by step, these projects are strengthening my React fundamentals and confidence in building real-world UI components. #ReactJS #JavaScript #FrontendDevelopment #WebDevelopment #ReactHooks #UIComponents #100DaysOfCode #DeveloperJourney

🧠 Memory Flip Game using React & Vite — A Hands-On UI Practice Project 😊 Built using React + Vite to refine state handling, component structure, and UI interactions. With 1 year of hands-on React experience, I believe continuous building is the best way to stay sharp. #ReactJS #Vite #FrontendDevelopment #JavaScript #ReactProjects #BuildInPublic #FullStackDeveloper

React Components & Reusability One of the most powerful concepts in React is component reusability. Instead of rewriting the same UI logic multiple times, reusable components help us: ✅ Keep code clean and maintainable ✅ Reduce duplication and bugs ✅ Scale applications faster By designing components with clear responsibilities and flexible props, we can build interfaces that are easy to reuse across different pages and features. Small, reusable components lead to cleaner architecture and better user experience. Build once. Reuse everywhere. #ReactJS #FrontendDevelopment #ReusableComponents #CleanCode #WebDevelopment #JavaScript

⚛️ React Rendering — finally made sense for me today For a long time, I thought React updates the UI in one go. Turns out… that’s not how it actually works 🙂 React does its job in two clear steps: 👉 First, it thinks (Render Phase) 👉 Then, it acts (Commit Phase) In the render phase, React only decides what should change. No DOM updates. No side effects. Just calculations. In the commit phase, React updates the DOM and runs effects. This is where things actually appear on the screen. Understanding this small difference helped me: - avoid unnecessary API calls - fix repeated renders - write cleaner useEffect logic If React rendering ever felt confusing, this breakdown might help you too. 📌 Saved this as a carousel for quick revision 💬 Curious to know — when did React “click” for you? #ReactJS #FrontendDevelopment #WebDevelopment #JavaScript #LearningInPublic #IndianDevelopers