Rubayed Ahmed Foysal

✨ 𝗗𝗮𝘆 𝟭𝟭 𝗼𝗳 𝗠𝘆 𝗥𝗲𝗮𝗰𝘁 𝗝𝗼𝘂𝗿𝗻𝗲𝘆 ⚛️🚀 Learned 𝗥𝗲𝗮𝗰𝘁 𝗥𝗼𝘂𝘁𝗲𝗿 — smooth navigation without full page reloads. React doesn’t load pages, it swaps components smartly 💻⚡ #ReactJS #100DaysOfCode

✨ 𝗗𝗮𝘆 𝟵 𝗼𝗳 𝗠𝘆 𝗥𝗲𝗮𝗰𝘁 𝗝𝗼𝘂𝗿𝗻𝗲𝘆 ⚛️🚀 Learned 𝘂𝘀𝗲𝗖𝗼𝗻𝘁𝗲𝘅𝘁 — solving prop drilling by sharing state globally. Makes component structure much cleaner 💻⚡ #ReactJS #100DaysOfCode

✨ 𝗗𝗮𝘆 𝟴 𝗼𝗳 𝗠𝘆 𝗥𝗲𝗮𝗰𝘁 𝗝𝗼𝘂𝗿𝗻𝗲𝘆 ⚛️🚀 Learned 𝗥𝗲𝗮𝗰𝘁 𝗛𝗼𝗼𝗸 𝗙𝗼𝗿𝗺 + 𝗭𝗼𝗱 — cleaner form handling & structured validation. Way better than managing forms manually 💻⚡ #ReactJS #100DaysOfCode

✨ 𝗗𝗮𝘆 𝟳 𝗼𝗳 𝗠𝘆 𝗥𝗲𝗮𝗰𝘁 𝗝𝗼𝘂𝗿𝗻𝗲𝘆 ⚛️🚀 Learned 𝘂𝘀𝗲𝗥𝗲𝗳 — store values without re-render & access DOM directly. Understanding when to use state vs ref is key 💻⚡ #ReactJS #100DaysOfCode

✨ 𝗗𝗮𝘆 𝟲 𝗼𝗳 𝗠𝘆 𝗥𝗲𝗮𝗰𝘁 𝗝𝗼𝘂𝗿𝗻𝗲𝘆 ⚛️🚀 Learned 𝗥𝗲𝗮𝗰𝘁.𝗺𝗲𝗺𝗼, 𝘂𝘀𝗲𝗠𝗲𝗺𝗼 & 𝘂𝘀𝗲𝗖𝗮𝗹𝗹𝗯𝗮𝗰𝗸 — avoiding unnecessary re-renders. Not about making things faster, but avoiding extra work 💻⚡ #ReactJS #100DaysOfCode

✨ 𝗗𝗮𝘆 𝟱 𝗼𝗳 𝗠𝘆 𝗥𝗲𝗮𝗰𝘁 𝗝𝗼𝘂𝗿𝗻𝗲𝘆 ⚛️🚀 Learned 𝗥𝗲𝗰𝗼𝗻𝗰𝗶𝗹𝗶𝗮𝘁𝗶𝗼𝗻, 𝗙𝗶𝗯𝗲𝗿, 𝗗𝗶𝗳𝗳𝗶𝗻𝗴 & 𝗞𝗲𝘆𝘀 — how React updates only what changes. Crazy how much optimization happens behind the scenes 💻⚡ #ReactJS #100DaysOfCode

✨ 𝗗𝗮𝘆 𝟰 𝗼𝗳 𝗠𝘆 𝗥𝗲𝗮𝗰𝘁 𝗝𝗼𝘂𝗿𝗻𝗲𝘆 ⚛️🚀 Learned 𝘂𝘀𝗲𝗘𝗳𝗳𝗲𝗰𝘁 — used for side effects like fetching data, timers, etc. React separates UI from side effects, which makes code cleaner and easier to manage 💻⚡ #ReactJS #100DaysOfCode

✨ 𝗗𝗮𝘆 𝟯 𝗼𝗳 𝗠𝘆 𝗥𝗲𝗮𝗰𝘁 𝗝𝗼𝘂𝗿𝗻𝗲𝘆 ⚛️🚀 Learned useState hook — instead of manually updating the DOM, just update state and React handles the UI. That shift from how to update → what the state should be is powerful 💻 #ReactJS #100DaysOfCode

⚛️ Day 2 🚀 Learned components, JSX, Babel & props. Components = reusable UI, JSX feels natural, props make data flow clean. React is starting to make sense 💻⚡ #ReactJS #100DaysOfCode

⚛️ 𝗗𝗮𝘆 𝟭 𝗼𝗳 𝗥𝗲𝗮𝗰𝘁 🚀 Learned React, ReactDOM & Virtual DOM — how React updates UI efficiently using diffing. Excited to build with React 💻⚡ #ReactJS #100DaysOfCode

🚀 Built Gitscope — GitHub Profile Analyzer Enter a username → get insights 📊 ✨ Profile score 📈 Top repos & languages 🧠 Auto insights ⏱️ Activity tracking 🌗 Dark/Light mode 🔗 gitscope-analyzer.vercel.app Built with HTML, CSS & JS + GitHub API 💻⚡ #JavaScript #WebDev

🚀 Built a responsive weather app using HTML, CSS & JS 🌦️ Real-time weather + clean UI 🌐 wxnow-weather.vercel.app Applying APIs, DOM & async JS in a real project 💻⚡ #JavaScript #WebDev

✨ Day 22 of My JavaScript Journey 🚀 Learned this keyword, different contexts, and how call(), apply(), bind() control it. Also explored strict vs non-strict mode and how it changes this behavior. Finished my JS fundamentals journey 💻⚡ #JavaScript #100DaysOfCode

🚀 Day 7 of #LeetCodeTop150 Solved 121. Best Time to Buy and Sell Stock ✅ 📌 Insight: Track the minimum price so far and compute profit in one pass → O(n) solution. #100DaysOfCode #LeetCode #DSA #CodingChallenge

✨ Day 21 of My JavaScript Journey 🚀 Learned Prototypes & Classes in JavaScript and how inheritance works through the prototype chain. #JavaScript #100DaysOfCode

🚀 Day 6 of #LeetCodeTop150 Solved today: ✅ 169. Majority Element ✅ 189. Rotate Array Good practice with array patterns and efficient problem-solving techniques. #100DaysOfCode #LeetCode #DSA #CodingChallenge

✨ 𝗗𝗮𝘆 𝟮𝟬 𝗼𝗳 𝗠𝘆 𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁 𝗝𝗼𝘂𝗿𝗻𝗲𝘆 🚀 Learned **Async/Await** in JavaScript — writing asynchronous code that looks synchronous. Cleaner and easier than promise chains. 💻⚡ #JavaScript #100DaysOfCode

✨ 𝗗𝗮𝘆 𝟭𝟵 𝗼𝗳 𝗠𝘆 𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁 𝗝𝗼𝘂𝗿𝗻𝗲𝘆 🚀 Learned Promises in JS — cleaner async code, avoiding callback hell. Also explored JSON vs JS Objects and how data is exchanged with APIs. 💻⚡ #JavaScript #100DaysOfCode #WebDev

🚀 Day 4 of #LeetCodeTop150 Solved 80. Remove Duplicates from Sorted Array II ✅ Used the two-pointer technique to keep each element at most twice while modifying the array in-place. 📌 Insight: Small constraint changes can change the whole logic! #100DaysOfCode #LeetCode #DSA

@tobikuyo Thanks

@rubayedahmed_ That callback hell moment is a rite of passage 😅 once you see it you can’t unsee it. Async/await is about to make your life so much easier. Day 18 and already getting to the good stuff — keep going 💪

✨ 𝗗𝗮𝘆 𝟭𝟴 𝗼𝗳 𝗠𝘆 𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁 𝗝𝗼𝘂𝗿𝗻𝗲𝘆 🚀 Learned Callback Hell in JavaScript — deeply nested callbacks that make async code messy. Now I see why Promises & Async/Await exist. 💻⚡ #JavaScript #100DaysOfCode