Debouncing in JavaScript: Improve Performance with Delayed Function Execution

🚫 Common React Mistakes Beginners Make (I Made Them Too) Every React developer goes through this phase. The problem isn’t mistakes — it’s not learning from them. Here are the most common ones 👇 🔹 Using index as key in lists Leads to UI bugs when items change order. 🔹 Overusing useEffect Not everything needs an effect. Many cases are solved with proper state flow. 🔹 Too much state in one component Hard to debug, hard to scale. 🔹 Premature optimization Using useMemo and useCallback everywhere without measuring performance. 🔹 Not understanding re-renders Re-render ≠ DOM update (React already optimizes this). 💡 Pro Tip Before adding libraries or optimizations, ask yourself: Can this be solved with better component design? 📌 Why This Matters ✔ Cleaner code ✔ Fewer bugs ✔ Faster learning curve 📸 Daily React tips & visuals: 👉 https://lnkd.in/g7QgUPWX 💬 Which React mistake slowed you down the most when you started? 👍 Like | 🔁 Repost | 💭 Comment #React #ReactJS #FrontendDevelopment #JavaScript #WebDevelopment #ReactTips #DeveloperLife

When I started learning React, I used to think it was a framework. It isn’t. React is a JavaScript library focused specifically on building user interfaces. The difference is simple: A framework controls the structure of your app and calls your code. A library gives you tools that you choose when and how to use. React falls in the second category. So why use React at all? When building UIs in plain JavaScript, the difficult part isn’t “can it be done?”—it’s keeping the DOM updates predictable as the interface grows. Manually tracking which element to update and when quickly becomes messy. React solves this by using a concept called the virtual DOM. Instead of manipulating the browser DOM directly, React creates a lightweight in-memory version of it. Whenever state changes, React compares the previous virtual DOM with the new one using its diffing algorithm. Only the parts that actually changed are updated in the real DOM. This approach doesn’t make React “magical.” Everything React does is technically possible with vanilla JS. React just makes UI updates consistent and easier to reason about. A few advantages that stood out to me as a beginner: • Component-based architecture • Virtual DOM with efficient updates • JSX for combining logic and UI • Smooth single-page application experience JSX is a topic of its own, and I’ll cover that next. #React #JavaScript #WebDevelopment #Frontend #ReactJS #LearningInPublic

💡 React.js Tips & Tricks I Use While Building Projects Sharing a few simple React practices that help me write cleaner and more maintainable code: 🔹 Break UI into small components Reusable components make your code easier to read, test, and scale. 🔹 Keep state minimal Store only what you need in state. Derived values can be calculated instead of stored. 🔹 Use useEffect wisely Avoid unnecessary re-renders by managing dependency arrays carefully. 🔹 Prefer functional components & hooks They’re cleaner, easier to reason about, and the modern React standard. 🔹 Use keys properly in lists Always use stable, unique keys — not array indexes (when possible). 🔹 Focus on accessibility early Use semantic HTML, labels, and keyboard-friendly components. Learning React is all about building, refactoring, and improving step by step ⚛️ More to learn, more to build 🚀 #ReactJS #FrontendDevelopment #JavaScript #WebDeveloper #LearningInPublic #CleanCode

So I've been building applications with React for a while now. It's a beast of a tool, but it's got some quirks. Like, have you ever stumbled upon a simple JavaScript detail that just drives you crazy? For me, it was this one thing about closures and reference equality in JavaScript - specifically with React's useEffect hook. It was a real headache. And it cost me months of debugging and performance issues. Here's the thing: React doesn't care about what's inside your JavaScript objects or functions, it only cares about their references. So, if you pass an array or object directly into the dependency array, and a new one is created on every render, React sees that as a "change" and re-runs the effect. It's like trying to take a picture of a moving target - it's just not gonna work. That's key. You gotta think about it like this: every time you create an object or array inline, you're creating a new reference, and that's critical for useEffect, useCallback, and useMemo. And don't even get me started on functions - they're objects too, so if you define one directly within a component's render body, its reference will change on every render. To avoid all the bugs and headaches, you gotta approach useEffect dependency arrays with care. Ask yourself: "Will this reference be stable across renders?" Use useCallback and useMemo to memoize functions and values, and never directly mutate state objects or arrays in React - always create a new copy. It's like the difference between trying to change a tire on a moving car versus pulling over to the side of the road - one way is just way safer. Mastering these concepts will totally transform your React debugging experience. It's not about being a JavaScript genius or anything, it's just about being a thoughtful React developer. And trust me, it makes a difference. You can check out more about this topic here: https://lnkd.in/gzhP52aF #React #JavaScript #Debugging

React Hooks Made Easy – Visual Guide Learning React Hooks can feel confusing at first 🤯 So I created this simple visual cheat-sheet to understand them easily 👇 🔹 useState – Store & update values 🔹 useEffect – Run side effects (API, lifecycle) 🔹 useContext – Share data without props drilling 🔹 useRef – Access DOM elements directly 🔹 useMemo – Save heavy calculations 🔹 useCallback – Save functions for performance 💡 If you are a beginner or transitioning into React, this image will help you understand: What each hook does When to use which hook How React thinks internally 👉 Save this post for revision 👉 Share it with someone learning React I’ll keep sharing easy React + Web Dev content 🚀 #ReactJS #ReactHooks #WebDevelopment #Frontend #JavaScript #LearnReact #CodingBeginners #100DaysOfCode

🚀 New Blog Published: Understanding Formik in React & React Native Forms look simple… until you build one 😅 Managing useState, validation, errors, touched fields, and submit logic can quickly get messy. In my latest blog, I break down: ✅ What Formik is ✅ Why forms become painful without it ✅ How Formik’s inbuilt props like handleChange, values, errors, and handleSubmit save a lot of manual work ✅ A clear mental model of how Formik works under the hood This blog is especially useful if you’re: a beginner in React / React Native confused about handleChange('email') struggling with form validation logic 📖 Read the full blog here: 👉 https://lnkd.in/dte_sYGZ Would love to hear your thoughts or how you’re handling forms in your projects 👇 #React #ReactNative #Formik #WebDevelopment #Frontend #LearningInPublic #JavaScript

🚀 Built a JavaScript Reactive Framework from Scratch – Zero.js Over the past few weeks, I challenged myself to go beyond using frameworks and instead understand how they actually work internally. So I built Zero.js — a minimal reactive JavaScript framework inspired by React, Vue, and SolidJS, focused on learning core concepts like reactivity and dependency tracking. 🔧 What I built & learned: Fine-grained reactivity using signals Automatic dependency tracking with effects Derived state via computed Proxy-based reactive objects A React-like zState API Template binding using {{ }} syntax Direct DOM updates (no virtual DOM) A fully working Todo App using the framework 🎯 Why I built this This project was purely educational — to deeply understand: How modern frameworks manage state How reactivity systems work under the hood Design trade-offs in framework development 📌 The project is not published to npm yet and is meant for learning, experimentation, and understanding framework internals. 🧠 This experience gave me much more confidence in frontend fundamentals and made me a better React developer overall. 🔗 GitHub: https://lnkd.in/d5Z_DPwr I’d love feedback from developers who’ve built or studied frameworks — and I’m excited to keep learning 🚀 #JavaScript #FrontendDevelopment #WebDevelopment #React #LearningByBuilding #OpenSource #Engineering #Students #Frameworks

So you wanna dive into React development. It's a wild ride. You've probably heard of React Hooks by now - they're like superpowers for your functional components. Very simple: they let you use state and other features without all the class component hassle. This makes your code way more readable, and let's be honest, easier to maintain - which is a huge win. You can do some pretty cool stuff with Hooks, like add state to functional components using useState, or perform side effects with useEffect. And the best part? You can create custom hooks to share logic between components, making your code simpler and more organized - it's like having a toolbox full of reusable parts. To get started, just remember a few key things: always call Hooks at the top level of your component, and only call them from React functions. Oh, and start with the built-in hooks before creating your own - it's like learning to walk before you run. React Hooks are a game-changer, making React development way more intuitive. Start with useState and useEffect, and then explore other hooks as you get more comfortable - trust me, it's worth it. So, what are you waiting for? Check out this beginner's guide to get started: https://lnkd.in/gwcTEGSE #ReactHooks #ReactDevelopment #JavaScript

What are #Props in React? Props means properties. In #React, props are used to pass data from one component to another, usually from a parent component to a child component. Think of props as information you give to a component so it knows what to display or how to behave. Simple example Parent component: <Welcome name="Taye" /> Child component: function Welcome(props) { return <h1>Hello, {props.name}</h1>; } Here: name is the prop "Taye" is the value props.name is how the child component uses it Simple way to understand it If a component is a person, props are what you tell that person. JavaScript just allows it. React props help you organize it properly. Important things to note Props are read-only A component cannot change its own props Props move from parent to child Props help make components reusable With #TypeScript TypeScript helps ensure you pass the right kind of data to your component and catch mistakes early. Quick summary Props pass data to components Props improve #code structure Props make your app easier to maintain If you’re learning React, understanding props is a big step forward. Feel free to connect, learn, and grow together 🚀 #ReactJS #JavaScript #TypeScript #WebDevelopment #LearningInPublic #NigerianDevelopers #TayeMatthewAbdulahi