How React handles multiple tasks in a single-threaded JavaScript

🤯 Stop the Flash! Learn the difference between useLayoutEffect and useEffect in React! useLayoutEffect is your secret weapon for synchronous DOM updates and measurements BEFORE the browser paints the screen. Perfect for preventing visual glitches (like flash of unstyled content) when you need to adjust layout based on rendered elements. If you don't need to read or manipulate the DOM synchronously, stick to useEffect for better performance! Which hook do you use more? Let me know! 👇 #React #ReactJS #ReactHooks #JavaScript #Frontend #WebDev #WebDevelopment #CodingTips #DevLife #useLayoutEffect #useEffect #DOMManipulation #ReactTutorial #CodeExplained

I used to mix up when to use v-if and when to use v-show 😅 Then this simple understanding helped: v-if → Adds/Removes the element from the DOM v-show → Just hides/show with CSS So now my rule: ✅ Use v-if when something should appear conditionally and not often ✅ Use v-show when you toggle visibility frequently (like dropdowns, tabs, filters) This small clarity made my UI more efficient and predictable. Sometimes the simplest concept saves the most time 😄 #VueJS #Frontend #WebDevelopment #JavaScript #LearningByDoing

Finally, React has provided a way to access the latest props and states in effects (useEffect/useLayoutEffect) without causing re-renders. The useEffectEvent hook will help achieve this. The hook helps extract non-reactive logic from useEffect webhooks. Non-reactive logic refers to when we don't want to perform any action. The useEffectEvent hook wraps a callback function and returns an Effect Event function, and whenever it gets called, the function has access to the latest props and state. So, it won't trigger a re-render, unlike in the case of dependency arrays. But it's not the replacement of the dependency array, as that is usually required to trigger effects. You should try it in your workflow as per the use cases. #react #javascript #frontend #hooks

𝟑𝟎 𝐃𝐚𝐲𝐬 𝐨𝐟 𝐓𝐚𝐢𝐥𝐰𝐢𝐧𝐝 --- 𝑫𝒂𝒚 1 You don’t always have to rely on Tailwind’s default sizes like 𝚡𝚜, 𝚜𝚖, 𝚕𝚐, or 𝚡𝚕. Whenever you need a very specific value, you can simply define your own size inside square brackets. For example, instead of using "𝚝𝚎𝚡𝚝–𝚕𝚐", you can write: "𝚝𝚎𝚡𝚝–[𝟷𝟾𝚙𝚡]" "𝚝𝚎𝚡𝚝–[𝟷.𝟷𝟻𝚛𝚎𝚖]" And this isn’t just for font sizes, this trick works for lots of utilities that accept numeric values. You can customize things like: "𝚐𝚊𝚙–[𝟷𝟺𝚙𝚡]" "𝚙–[𝟸𝟸𝚙𝚡]" "𝚖–[𝟹.𝟻𝚛𝚎𝚖]" and many more… Basically, if a utility deals with size or spacing, chances are you can override it with your own custom value. So next time you need something between the default options, just drop in your own value #FrontendDeveloper #ReactJS #UIUX #Tailwind #CSS #Style #Class #Code #Front #Vue #javascript #Typescript #NextJS #Nuxt #DeveloperJobs

The Silent Villain: Unoptimized Images You can write the cleanest React code ever but one 2MB image can ruin your entire Lighthouse score. Most performance issues don’t come from bad code… they come from assets we forget to optimize. Next.js gives us tools <Image />, automatic resizing, and modern formats like WebP/AVIF — but many devs still drag and drop raw, heavy files straight from Figma. Optimization isn’t about perfection it’s about respecting your user’s bandwidth and time. Because sometimes, the real bug isn’t in your code it’s in your images. How do you handle image optimization in your Next.js projects? #Nextjs #ReactJS #WebPerformance #FrontendOptimization #WebDevelopment #CleanCode #FrontendEngineer #PerformanceMatters #JavaScript #CodingTips #DeveloperMindset #WebDev

💠 Portal in React Portal is a way to render a component’s child elements outside of its parent DOM hierarchy while keeping the React component tree intact. 🔹 Why Do We Need Portals? React components render inside their parent element. But for elements like: Modals / Popups Tooltips Dropdown menus Notification it’s better to render them outside the main component tree. 🔹 Advantages of Portals 🔸 Solve z-index & overflow issues 🔸 Keep code modular and reusable 🔸 Maintain React’s state and event flow 🔸 Ideal for modals, alerts, or dropdowns #ReactJS #WebDevelopment #Frontend #ReactPortals #UIDesign #JavaScript #ReactTips 

100 Days Challenge of React + Tailwind Projects Day - 47/100  Date Difference Calculator Date Difference Calculator is a simple and elegant React project that allows users to easily calculate the number of days between two selected dates. With a clean UI and interactive design, users can input start and end dates, view results instantly, and reset the fields anytime. Perfect for learning React hooks, date handling, and styling with Tailwind CSS. #ReactJS #DateCalculator #JavaScript #TailwindCSS #WebDevelopment #ReactProject #FrontendDevelopment #Coding #LearnReact

Think `new Array(10)` creates `[10]`? Cute. The pros know it creates an empty array with 10 slots. The catch? You just made a sparse array full of `undefined` values by mistake. Your next `.map()` will do nothing, failing silently. Is this a useful pre-allocation feature, or JavaScript's most famous design flaw? #GaboTips #JS

Thales Domingues Tip 👇 Finally, ⚛️ React has provided a way to access the latest props and states in effects (useEffect/useLayoutEffect) without causing re-renders. The useEffectEvent hook will help achieve this. The hook helps extract non-reactive logic from useEffect webhooks. Non-reactive logic refers to when we don't want to perform any action. The useEffectEvent hook wraps a callback function and returns an Effect Event function, and whenever it gets called, the function has access to the latest props and state. So, it won't trigger a re-render, unlike in the case of dependency arrays. But it's not the replacement of the dependency array, as that is usually required to trigger effects. You should try it in your workflow as per the use cases. #react #javascript #frontend #hooks

What’s the Difference Between Props and State? In React, there are two main ways to handle data: Props and State. They both carry information, but serve different purposes. 🔹 Props (Properties) Passed from parent to child. Are read-only. Let you control a component from outside. 🔹 State Defined and managed inside the component. Mutable via the setter. Changes with user interaction and updates the UI. 🧩 In short: Props are external, State is internal. Together, they make React components interactive and dynamic. #React #PropsVsState #ReactSeries #ReactCheatSheet #Frontend #JavaScript #WebDevelopment #ReactHooks #LearnReact #DevCommunity #CodingTips