React Event Handling Principles

💡 How React Connects State to Input? In React, inputs are controlled using State. This means React controls what user types. 👉 Input value = State value 👉 On typing → State updates 👉 State updates → UI updates This is called a Controlled Component. 📌 Why important? • Form validation • Dynamic UI updates • Better data handling • Predictable behavior ⚡ This is one of the most important React fundamentals. Follow TFSC to master modern frontend development. #reactjs #reactstate #frontenddeveloper #javascript #webdevelopment #coding #learnreact #reacttutorial #programming #tfsc

Nobody talks about the moment you finally understand the React rendering cycle. One day it just clicks. You stop fighting re-renders. You stop throwing useCallback at everything hoping something sticks. You stop questioning why your component is rendering three times on a single state update and start actually knowing why. That moment does not come from reading the docs. It comes from breaking something badly enough in production that you had no choice but to go deep. The virtual DOM is not magic. Reconciliation is not magic. The dependency array is not a suggestion. Once you internalize that React is just a function that runs on a schedule and decides what changed, everything else starts making sense. Chase the understanding, not the syntax. #React #ReactJS #JavaScript #FrontendDevelopment #WebDevelopment #SoftwareEngineering #UIEngineering #ReactDeveloper #CleanCode #Programming

🚀 JavaScript Tips Many developers use var, let, and const every day. But the differences between them can still cause confusion. Here’s the simple idea: • var → function scoped • let → block scoped • const → block scoped and cannot be reassigned Because of this: • var can create unexpected bugs • let is better for variables that change • const should be the default choice In modern JavaScript, most developers follow this rule: 👉 Use const by default 👉 Use let when the value needs to change 👉 Avoid var I made a quick carousel to explain it simply 👇 Which one do you use most in your projects? #javascript #webdevelopment #frontend #programming #developers

🌀 Recursion in JavaScript Recursion is a technique where a function calls itself to solve a problem. 👉 It works by breaking a problem into smaller parts 👉 Each call handles a smaller input 👉 It stops when it reaches a base case 💡 Key Concepts: • Base Case → Stops the recursion • Recursive Case → Calls the function again ⚠️ Important: Without a base case, recursion will cause infinite calls and crash the program. 🔥 Key Takeaway: Solve a small part and let recursion handle the rest. #javascript #webdevelopment #frontend #coding #100DaysOfCode

Revisiting the JavaScript DOM (Document Object Model) today to strengthen my fundamentals. Sometimes the best way to move forward in development is to go back and revise the basics. While revising, I focused on: • What the DOM actually is • The core pillars of DOM manipulation • Handling multiple events • Selecting multiple elements efficiently • Using setTimeout and setInterval • Building small interactive examples Every time I revisit these concepts, I discover something new and deepen my understanding of how JavaScript interacts with the browser. Small steps every day toward becoming a better developer. 🚀 #javascript #dom #webdevelopment #frontenddevelopment #codingjourney #100daysofcode #programming #developerlife #learninginpublic

Most React dev has wasted hours building tables from scratch. Sorting, filtering, pagination... same struggle every time 😅 Recently came across react-table-craft and a few things stood out: ● Headless design - your styles, their logic. No CSS fights. ● Global config - set once, override anywhere. Way less prop drilling. ● Built-in virtualization - 10k rows, still fast. Only renders what's visible. Solid architecture whether you use the library or not. #React #JavaScript #FrontendDevelopment #WebDev #OpenSource #Programming #BuildInPublic #SoftwareEngineering #Developer #TechCommunity

🚀 React Fundamentals: Key Concepts Every Beginner Should Know 🔹 Components Components are the building blocks of a React application. They allow us to divide the UI into independent, manageable pieces, making code easier to understand and maintain. 🔹 Reusable Components A reusable component is designed once and used multiple times across the application. This helps reduce code duplication and keeps the application consistent and scalable. . 🔹 Dynamic Data Binding Dynamic data binding allows React to update the UI automatically when the data changes. This ensures that the user interface always reflects the latest state of the application. 💡 Small reusable pieces + dynamic data = powerful and scalable UI. #React #FrontendDevelopment #JavaScript #WebDevelopment #Programming #SoftwareDevelopment #LearningInPublic

JavaScript does NOT use classical inheritance. It uses Prototype inheritance. Example: function Person(name) { this.name = name; } Person.prototype.sayHi = function() { console.log("Hi " + this.name); }; const p1 = new Person("Prakhar"); p1.sayHi(); How it works: JavaScript creates empty object Links it to Person.prototype Assigns this Returns object If property not found on object, JavaScript looks up the prototype chain. This is how inheritance works internally. Understanding prototypes makes debugging easier. #javascript #webdevelopment #frontend #programming

🚀 Understanding JavaScript Closures One of the most powerful concepts in JavaScript is Closure. A closure happens when a function remembers variables from its outer scope even after the outer function has finished executing. 💡 Why it matters: Closures help developers create private variables, maintain state, and build powerful patterns in JavaScript applications. They are widely used in: ✔ Event handlers ✔ Callbacks ✔ Data encapsulation ✔ Functional programming Mastering closures helps you write clean, maintainable, and scalable JavaScript code. #JavaScript #WebDevelopment #FrontendDevelopment #Programming #Closures #SoftwareDevelopment