Thales Domingues Tip 💡- ⚛️ React 19 brings the biggest paradigm shift since Hooks. Here are 5 features that will change how you code: ✨ Actions - Say goodbye to manual loading/error states 🎯 use() Hook - Read promises, context, and more in render ⚡ useOptimistic - Instant UI feedback, built-in 🖥️ Server Components - Stable and production-ready 📄 Document Metadata - No more helmet libraries needed The before/after comparison says it all. Less boilerplate, more productivity. Are you planning to upgrade? Drop your thoughts below. 👇 #ReactJS #WebDev #Programming #TechNews

What happens in this React code? 👇 𝘂𝘀𝗲𝗘𝗳𝗳𝗲𝗰𝘁(() => {  𝗰𝗼𝗻𝘀𝗼𝗹𝗲.𝗹𝗼𝗴('𝗘𝗳𝗳𝗲𝗰𝘁 𝗿𝗮𝗻'); }, [ { 𝗮: 𝟭 } ]); 🗳️ Options: 1️⃣ Runs only once 2️⃣ Runs every render 3️⃣ React warns 4️⃣ Depends on object structure ✅ Correct Answer: 2️⃣ Runs every render 💡 Why: Each render creates a new object reference for { a: 1 }, so React thinks the dependency changed every time. So what's the fix? 🤔 ✅ Memoize the object or move it outside render. Check the carousel below for example #react #frontend #programming #interviewprep

Every frontend dev remembers the "div-ficult" struggle of centering an element. The Old Way: margin: 0 auto; ➡️ Only horizontal! 😩 The Flexbox Cheat Code: display: flex; justify-content: center; align-items: center; ➡️ Two-way perfection! The Grid Genius: display: grid; place-items: center; ➡️ One line, done! Stop the struggle! Flexbox and Grid made centering easy. Master these techniques and save your sanity! 💾 #frontend #programming #webdev

A React component is a function which returns JSX. When you use that component inside another component, the React creates an element. <Ali /> refers to element of Ali component. So, when React sees <Ali /> it gets it's JSX and internally call React.createElement with details of Ali component such as props, key and children. React.createElement creates an object which is basically description of what needs to be rendered. Then React adds that to the virtual DOM and gets added to real DOM. Tried my best to simplify this concept. Thinking of writing a blog on it. You can subscribe to my newsletter to read in-depth. link in comment. #react #javascript #frontend #programming

Keyboard Events in JavaScript Keyboard events make web pages more interactive by detecting when users press or release keys. These events help in creating shortcuts, form controls, and smooth navigation experiences. ✨The three main keyboard events are: 🔹keydown – triggered when a key is pressed. 🔹keypress – triggered while the key is held down (mostly for character keys). 🔹keyup – triggered when the key is released. #JavaScript #WebDevelopment #Coding #WebDesign #FrontendDevelopment #Stemup

Task 3 A ReactJS simple calculator consists of a user interface with input fields for numbers and buttons for arithmetic operations, utilizing React’s component structure and state management via hooks like useState to store the current values and results Description of Simple Calculator ReactJS CodeA simple calculator in ReactJS can: Take two number inputs.Provide buttons for basic arithmetic operations: addition, subtraction, multiplication, and division. Dynamically display the result of calculations. ⚡Include reset buttons for inputs and result #reactjs #javascript #webdevelopment #coding #programming #frontenddeveloper #developer #webdeveloper #indolike #100daysofcode #reactjstutorial #coder #softwaredeveloper #html #css #webdev

🚀 React vs Real DOM: Why React is Smarter and Faster ⚡ Ever wondered how React updates the screen so fast when you click a button or change a value? 🤔 It’s not magic. It’s the Virtual DOM and React Hooks working together behind the scenes. In my latest blog, I explained this in simple words with fun analogies 👉 Read the full blog here: https://lnkd.in/gsB-33JN #ReactJS #WebDevelopment #JavaScript #ReactHooks #FrontendDeveloper #WebDev #Coding #Programmer #DeveloperCommunity #LearnToCode  #SoftwareDevelopment #Nextjs #ReactNative #AbilashCodes #TechBlog

Day 7 of #30DaysOfJavaScript on LeetCode Today's challenge: 2626 — Array Reduce Transformation The task was to implement a custom reduce() function that applies a reducer function (fn) on each element of an array, accumulating the result — just like the built-in Array.reduce() method, but without using it. Here’s my solution 👇 var reduce = function(nums, fn, init) { let ans = init; for (let i = 0; i < nums.length; i++) { ans = fn(ans, nums[i]); } return ans; }; This challenge helped me understand how accumulators work and how values are carried forward during iteration. It deepened my appreciation for how methods like reduce() process arrays step by step turning a list of elements into a single meaningful result. If you’d like to give it a shot, check it out here: https://lnkd.in/g6WC5mu7 #JavaScript #LeetCode #CodingChallenge #LearningJourney #30DaysOfCode #Functions #Callbacks #Arrays #Reduce #Programming

React Hooks Deep Dive: The Complete Guide (PDF Attached) Following up on my previous post about useMemo and useCallback, I've expanded it into a comprehensive guide covering all 11 essential React Hooks. What's Inside: - useState & useEffect fundamentals - useContext for cleaner state access - useRef for DOM manipulation & persistence - useMemo & useCallback (expanded from last post) - useReducer for complex state logic - useLayoutEffect for synchronous updates - Modern hooks: useId, useDeferredValue, useTransition #React #WebDevelopment #JavaScript #Frontend #ReactHooks #Programming #SoftwareEngineering #WebDev #TypeScript #Development

💫🪐 It’s time for weekly retrospective. This demo belongs to components I built using Reactjs and Nextjs during the last week. 💻 Code: https://lnkd.in/dc8YXe2U 🔗 Link in the comments to work together on your next project. #producthunt #indiehackers #web #code #programming