Optimize React Editor Performance with useDeferredValue

🚫 Stop using querySelector in React! In React, you shouldn’t manipulate the DOM like we do in plain JavaScript (querySelector, getElementById, etc.). Why? Because React uses a Virtual DOM and manages the real DOM for you. Direct DOM manipulation can lead to bugs and unexpected behavior. ✅ The right approach: useRef useRef gives you safe and direct access to a DOM element while staying aligned with React’s lifecycle. ✨ Benefits: Cleaner code Predictable components Easier maintenance Think in React way, not JavaScript way 😉 #React #JavaScript #WebDevelopment #Frontend #CleanCode #ReactHooks #Learning

Your API can be fast. Your UI can still feel slow. Why? Unnecessary re-renders No memoization No lazy loading Heavy initial bundle React performance is NOT magic. It’s discipline. #w3school #ReactJS #FrontendPerformance #WebOptimization #MERNStack #ReactHooks #JavaScript

DAY 20 OF POSTING REACT CONTENT ⚛️ WHAT DOES await REALLY DO? 🤔 await tells JavaScript: 👉 “Wait here until the Promise finishes.” It pauses the function until the result is ready. Example: async function getData() { const data = await fetchData(); console.log(data); } The code waits for fetchData() before moving to the next line. Cleaner than .then() Easier to read Same result #ReactJS #JavaScript #AsyncAwait #Promises #FrontendDevelopment #LearnInPublic #WebDevelopment #CodingJourney

DAY 6 | OF POSTING REACT CONTENT ⚛️ WHY DOES REACT BUILD UI USING FUNCTIONS — NOT HTML PAGES? 🤔 In React, a screen is not a page. It’s a JavaScript function. That function simply returns what should appear on the screen. This makes the UI: 👉 reusable 👉 easier to manage 👉 easy to change with data That’s the base idea React is built on. 💬 If you’re new to React, this mindset matters more than syntax. #ReactJS #ReactBasics #FrontendDevelopment #JavaScript #LearnInPublic #WebDevelopment #CodingJourney

DAY 13 OF POSTING REACT CONTENT ⚛️ WHY REACT PREFERS ARROW FUNCTIONS ⚛️ 👉 Function behavior should not change based on who calls it. With normal functions: behavior can change context can change confusion increases Arrow functions say: “I don’t care who calls me” “I stay tied to where I was created” “My behavior stays the same” That’s why React prefers arrow functions: predictable behavior fewer bugs simpler mental model This is not about syntax. This is about reliability. #ReactJS #JavaScript #ReactBasics #FrontendDevelopment #LearnInPublic #WebDevelopment #CodingJourney

One habit I’m intentionally building while working on my own projects is reviewing my code after a short break. Coming back with fresh eyes makes it easier to notice unnecessary logic, improve naming, and simplify the flow. The code usually works — but readability is where most improvements actually happen. This small habit is already helping me move faster and write cleaner code. #FrontendDeveloper #ReactJS #JavaScript #WebDevelopment

Understanding Array.reduce() in JavaScript 👨💻 A simple example of how reduce() helps calculate the total order amount from an array of objects clean, readable, and powerful. Once it clicks, you’ll start seeing reduce() everywhere. #JavaScript #WebDevelopment #Frontend #CodingTips #ReactJS #LearnToCode

Practicing React hooks with a simple project: a button that prompts for name and age, stores them in state, and renders dynamically #ReactJS #JavaScript #CodingJourney

🚀 Iterating Over Arrays: forEach method (JavaScript) The `forEach()` method is a higher-order function that executes a provided function once for each element in an array. It takes a callback function as an argument, which receives the current element, its index, and the array itself. `forEach()` is a convenient way to perform actions on each element of an array without explicitly managing a loop counter. Learn more on our website: https://techielearns.com #JavaScript #WebDev #Frontend #JS #professional #career #development

Why do we overcomplicate simple UI actions? 🧐 A button toggling a menu doesn’t need a framework. HTML already supports visibility. JavaScript can flip it directly. One click. Hidden becomes visible. Visible becomes hidden. 1. No state. 2. No conditionals. 3. No extra logic. Sometimes the browser already solved it. What simple feature did you discover late? #js #javascript #frontend