#Javascript Onclick

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#Javascript Onclick Reel by @highonnknowledge - useEffectEvent is a React Hook that lets you extract non-reactive logic from your Effects into a reusable function called an Effect Event. callback:
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@highonnknowledge
useEffectEvent is a React Hook that lets you extract non-reactive logic from your Effects into a reusable function called an Effect Event. callback: A function containing the logic for your Effect Event. When you define an Effect Event with useEffectEvent, the callback always accesses the latest values from props and state when it is invoked. This helps avoid issues with stale closures. . . . [student,coding, code, react, learning, skill, upskill] #coding #coder #frontend #fullstackdeveloper #reactjs #next #api #webdeveloper #webdevelopment #website #web #development #tips #softwaredevelopment #nextjoy #javascript #trainer #technology #smallbusiness #onlineteaching #collaboration #highonnknowledge
#Javascript Onclick Reel by @and_codes - Want to improve your React app performance? In this short video, you'll learn: • How to prevent unnecessary re-renders • When to use React.memo • Why
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@and_codes
Want to improve your React app performance? In this short video, you’ll learn: • How to prevent unnecessary re-renders • When to use React.memo • Why useCallback and useMemo matter • How code splitting improves load time • Why production builds are important These simple optimization techniques can make your React applications faster and more efficient. Follow for more React tips, frontend tutorials, and web development content. #ReactJS #WebDevelopment #Frontend #JavaScript #Programming #Shorts
#Javascript Onclick Reel by @thespiritualfounder - When you click a button inside nested elements, the event doesn't just stay there. It travels. Event propagation defines the order in which elements
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@thespiritualfounder
When you click a button inside nested elements, the event doesn’t just stay there. It travels. Event propagation defines the order in which elements receive that event — from top to bottom (capturing), then the target, and back up (bubbling). By default, JavaScript listens during the bubbling phase. But understanding all three phases helps you write cleaner code and avoid unexpected behavior. If you deeply understand event propagation, many React internals start making more sense. Save this for your next interview. #javascript #interviewpreparation #frontenddeveloper #react #reactjs
#Javascript Onclick Reel by @reactlessons - Comment "React" and I'll send you the full lesson for this reel plus a guide on event handlers in React 🚀 addTodo() vs addTodo - one character diffe
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@reactlessons
Comment "React" and I'll send you the full lesson for this reel plus a guide on event handlers in React 🚀 addTodo() vs addTodo — one character difference. One works perfectly. One crashes your entire application into an infinite loop. Browser freezes. Console explodes. You stare at the screen wondering what just happened. This mistake is so common it deserves its own reel. Let's break down exactly why those parentheses cause chaos. Here's the wrong code: onClick equals addTodo with parentheses. Looks fine. Logical even. You want to call addTodo when clicked, so you write it like a function call. But those parentheses execute the function immediately. Not when the user clicks. Right now. During the render itself. Here's the chain of doom. React renders your component. Hits the onClick line. Sees addTodo(). Calls it immediately. addTodo updates state. State change triggers a re-render. React renders again. Hits addTodo() again. Calls it again. State updates again. Re-render again. Infinite loop. No exit. Browser hangs. App dies. The fix is simple once you understand it. Version one: just the function name without parentheses. onClick equals addTodo. No brackets. You're passing a reference to the function. React holds onto that reference and calls it only when the user actually clicks. Safe. Version two: wrap it in an arrow function. onClick equals arrow function that calls addTodo. The arrow function itself is the reference React holds. When clicked, the arrow function executes, which then calls addTodo. Also safe. When do you need the arrow function version? When you need to pass arguments. Like deleteTodo with an index. You can't just write deleteTodo because React wouldn't know which index to use. The arrow function lets you pass that specific value when the click happens. Simple rule: no arguments needed, just use the function name. Arguments needed, use an arrow function wrapper. One character. Massive difference. Now you know. This reel is just the trailer. Full lesson 👉 www.projectschool.dev
#Javascript Onclick Reel by @the.codingmonk - This React Bug Breaks Realtime Apps (useEffectEvent Fix Explained) React apps that use Socket.IO, WebSockets, or event listeners often suffer from a
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@the.codingmonk
This React Bug Breaks Realtime Apps (useEffectEvent Fix Explained) React apps that use Socket.IO, WebSockets, or event listeners often suffer from a hidden bug called a stale closure — where your callbacks silently use old state and break your logic. In this video, I show you: A real stale closure bug using Socket.IO Why it happens in React How React 19’s new useEffectEvent hook fixes it cleanly And how to use it correctly in realtime, event-driven apps If you’re building chat apps, live dashboards, notifications, or anything realtime — this is a must-know React concept. Topics covered: Stale closures in React Socket.IO + React integration Why useEffect can cause subtle bugs How useEffectEvent works in React 19 Best practices for realtime event handlers 👍 Like the video if it helped 🔔 Follow for more React & frontend deep dives #React #ReactJS #React19 #useEffectEvent #SocketIO #WebSockets #JavaScript #Frontend #WebDevelopment
#Javascript Onclick Reel by @visualcoding.in - ⚛️ useEffect Explained (React Hook) useEffect lets you perform side effects in functional components. 📌 Runs after component renders 📌 Used for AP
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@visualcoding.in
⚛️ useEffect Explained (React Hook) useEffect lets you perform side effects in functional components. 📌 Runs after component renders 📌 Used for API calls, subscriptions, timers, DOM updates 🧠 Syntax: useEffect(() => { // side effect code }, [dependencies]); 🔹 No dependency → runs on every render 🔹 Empty array [] → runs once (on mount) 🔹 With dependencies → runs when they change #useEffect #ReactJS #FrontendDevelopment #WebDevelopment #JavaScript LearnReact
#Javascript Onclick Reel by @visualcoders - ⚛️ useEffect Explained (React Hook) useEffect lets you perform side effects in functional components. 📌 Runs after component renders 📌 Used for AP
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@visualcoders
⚛️ useEffect Explained (React Hook) useEffect lets you perform side effects in functional components. 📌 Runs after component renders 📌 Used for API calls, subscriptions, timers, DOM updates 🧠 Syntax: useEffect(() => { // side effect code }, [dependencies]); 🔹 No dependency → runs on every render 🔹 Empty array [] → runs once (on mount) 🔹 With dependencies → runs when they change #useEffect #ReactJS #FrontendDevelopment #WebDevelopment #JavaScript LearnReact
#Javascript Onclick Reel by @reactive_codes - Next.js Is More Powerful Than React React is powerful. But Next.js adds production-level capabilities on top of it. In this reel, I explain why Next
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@reactive_codes
Next.js Is More Powerful Than React React is powerful. But Next.js adds production-level capabilities on top of it. In this reel, I explain why Next.js is more capable: • CSR vs SSR + SSG + ISR • React Router vs File-based routing • Separate backend vs Built-in API routes • SEO differences • Performance optimization • Full-stack capability If you’re serious about frontend engineering, you need to understand this. 🎓 Learn React & Next.js in depth: 👉 https://reactivecodes.in/courses 💬 Comment REACT for a full comparison breakdown. #NextJS #ReactJS #FrontendEngineering #WebDevelopment #JavaScript #FullStackDeveloper #TechReels #CodingReels #SoftwareDeveloper #ProgrammingLife
#Javascript Onclick Reel by @coding_gyaan.dev - 🎬 React Batching Explained with Visualization ⚛️🔄 Kabhi notice kiya? Multiple setState calls karne ke baad bhi React sirf ek hi re-render karta hai
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@coding_gyaan.dev
🎬 React Batching Explained with Visualization ⚛️🔄 Kabhi notice kiya? Multiple setState calls karne ke baad bhi React sirf ek hi re-render karta hai 👀 Yahi hota hai React Batching. 👉 React batching multiple state updates ko group karta hai 👉 Phir unhe ek single re-render mein apply karta hai 👉 Result = Better performance + fewer renders Visualization se samjho: setState() ➝ setState() ➝ setState() React: “No panic 😎 I’ll update once.” 💡 React 18 mein automatic batching aur powerful ho gaya hai — even inside async code. Perfect for: ✔️ React interviews ✔️ Performance optimization ✔️ Understanding React render cycle Batching samjha to half performance problems solve 🚀 . . . #reactjs #reactinterview #javascript #vibecoding #anthropic
#Javascript Onclick Reel by @thefullstackcampus - Want to display a list in React? 👀 You don't write loops directly in JSX… you use JavaScript inside { }. React lets you loop through data using map
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@thefullstackcampus
Want to display a list in React? 👀 You don’t write loops directly in JSX… you use JavaScript inside { }. React lets you loop through data using map(). Idea: array dot map → return UI → rendered automatically. Each item becomes a component on screen. That’s how lists, cards, and tables are built in React. JSX + { } = Dynamic UI. 💬 Have you used map() in React yet? Comment YES or LEARNING 👇 📌 Save this for React basics 👥 Follow for simple frontend learning
#Javascript Onclick Reel by @think_ai_100k - Stop killing your React performance! 🛑💻 Ever wonder why your console is screaming with 100+ renders after a single click? 😱 It's usually not a gho
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@think_ai_100k
Stop killing your React performance! 🛑💻 Ever wonder why your console is screaming with 100+ renders after a single click? 😱 It’s usually not a ghost in the machine—it’s your useEffect dependencies (or lack thereof). In this breakdown: ✅ Why No Dependency Array = Render Chaos ✅ The Infinite Loop trap with setState ✅ How to stabilize objects using useMemo Don’t let your app lag. Master your hooks and keep those renders under control! ⚡️ Drop a “🚀” if this helped you save your app! Hashtags: #reactjs #webdevelopment #coding #javascript #frontend #webdev #programming #softwareengineer #100DaysofCode #reacthooks #hooks #useEffect #code #developer #frontenddeveloper #javascriptdeveloper #webdevtips #codingtips #cleancode #programminglife #tech #coder #softwaredev #reacttips #typescript #webdesign #devcommunity #codinglife #techtips #reactlearning
#Javascript Onclick Reel by @the_unfiltered_engineer23 - Here ⬇️ Explain the JavaScript Event Loop. How does async code work? What is the difference between microtasks and macrotasks? How does setState w
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@the_unfiltered_engineer23
Here ⬇️ Explain the JavaScript Event Loop. How does async code work? What is the difference between microtasks and macrotasks? How does setState work in React? Is it synchronous or asynchronous? What is React Reconciliation? What are keys in React and why are they important? Explain virtual DOM and how React updates the real DOM efficiently. How do you optimize React performance? Give one example. What is the difference between let, const, and var in JavaScript? What are closures in JavaScript? Give an example. Explain this in JavaScript. How does it change in arrow functions? What is the difference between controlled and uncontrolled components? #tech #softwareengineer #virel #interview #engineering

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