⏳ Debounce in JavaScript – Write Smarter, Faster Apps Ever noticed search boxes that wait until you stop typing before firing an API call? That’s debouncing in action. Debounce ensures a function runs only after a certain delay once the last event occurs. 🧠 When should you use Debounce? Search input API calls Window resize events Button click protection Form validations It helps reduce unnecessary function executions and improves performance. 🚀 Why Debounce Matters Improves performance Prevents API spamming Enhances user experience 💡 Tip If events fire continuously, use debounce. If events must fire at regular intervals, use throttle. #JavaScript #Debounce #Frontend #WebDevelopment #Coding #InterviewPrep

Using <div> for buttons. Just stop. 🛑 When you use a <div> as a button, you're creating extra work for yourself and a nightmare for keyboard users. <button>: Handles focus, "Enter" key, and screen readers automatically. <div>: Requires JS hacks just to make it usable. The Tip: Let the browser do the heavy lifting. Use semantic elements and get 80% of your #a11y for free. 🛠️ #webdev #frontend #javascript #coding #accessibility

Today I learned about Debouncing and Throttling — two simple but powerful techniques to improve performance in frontend applications. Debouncing ensures a function runs only after the user stops triggering an event (great for search inputs). Throttling limits how often a function can run within a fixed time interval (useful for scroll or resize events). These techniques help reduce unnecessary API calls and make applications smoother and more efficient. Small concepts, big impact 🚀 #JavaScript #WebDevelopment #Frontend #Performance #Learning

🚦 Throttle in JavaScript – Control Function Execution Like a Pro Some events fire hundreds of times per second (scroll, resize, mousemove). Running logic on every event can kill performance.\ That’s where throttling helps. Throttle ensures a function runs at most once in a given time interval, no matter how many times the event fires. 🧠 When should you use Throttle? Scroll event handling Window resize listeners Mouse move tracking Rate-limited UI updates Throttle keeps your app smooth and efficient. 🚀 Why Throttle Matters Prevents performance issues Reduces unnecessary calculations Keeps UI responsive 💡 Insight If events fire continuously and you need regular updates → use Throttle If you need action only after user stops → use Debounce #JavaScript #Throttle #Frontend #WebDevelopment #Coding #InterviewPrep

📌 call, apply, bind in JavaScript These methods are used to control the value of this inside a function. 🔹 call() Calls a function immediately and sets this. Use case: Borrow a function from another object. 🔹 apply() Same as call, but arguments are passed as an array. Use case: Useful when arguments are already in an array. 🔹 bind() Returns a new function with this permanently bound. Use case: Used in callbacks, event handlers, and async code. Thanks to - aka Anshu Pandey #JavaScript #WebDevelopment #Frontend #JSConcepts #Developers

Day 9 of #75Hard Today was a reminder of how easy it is to forget the basics when libraries do the heavy lifting. While building a modal, I revisited: What a backdrop actually is (not CSS magic, but a real DOM layer) How event bubbling works Why stopPropagation() is critical to prevent unwanted closes Frameworks and UI libraries abstract these details so well that we stop questioning why things work — until we have to build them ourselves. Good reminder for me: If you don’t understand the core reason, you’re just assembling pieces — not engineering. Back to fundamentals. On to Day 10. #75Hard #JavaScript #WebDevelopment #Frontend #LearningInPublic #VueJS

🤯 This JavaScript snippet will catch you off guard... const obj = {  value: 10,  double() {   return this.value * 2;  } }; const { double } = obj; console.log(double()); // What do you think prints? 💭 Most developers say 20. The real answer? NaN. Here's why 👇 When you destructure double from obj, it loses its this binding. Called as a plain function, this no longer points to obj — it points to undefined (strict mode) or the global object (non-strict), where value doesn't exist. So this.value becomes undefined, and undefined * 2 = NaN. ✅ Let me know how will you fix it before the console. The rule to remember: A method is only bound to its object when called AS a method (obj.double()). The moment you detach it, this is gone. This trips up even experienced developers. How many of you got it right? 👇 #JavaScript #WebDev #Frontend #JSInterviewTips #CodingTips #InterviewExperience

🚀 Just shipped v1.0 of my React Form Components Library! I’ve been engineering a lightweight, accessible form component library with a strict focus on developer experience and production readiness. What's in the initial release: ✅ Button – Polymorphic component that renders as button or anchor with loading states and icon support ✅ Input – Full controlled/uncontrolled support with built-in validation and error handling ✅ Select – Type-safe generic component that works with any object type Why I built this: Most form libraries are either too bloated or lack proper TypeScript support. I wanted something that works out of the box with proper accessibility, provides excellent TypeScript DX with full autocomplete, stays lightweight with zero dependencies, and gives you full control over styling. Key features: ♿ WCAG 2.1 AA compliant 📘 100% TypeScript with comprehensive types 🎨 Tailwind CSS styling with easy customization 🔄 Supports both controlled and uncontrolled patterns ⚡ Production-ready with documented APIs What's next: This is just the foundation. I'll be adding more components based on real-world needs and community feedback! The library is open source and ready to use. Would love to hear your thoughts and suggestions! 🔗 GitHub + Live Demo in comments 👇 #React #TypeScript #OpenSource #WebDevelopment #Frontend #TailwindCSS #A11y #JavaScript

Stop using Math.random() for IDs in React 👇. We often need unique IDs to connect a <label> to an <input> for accessibility. "Clicking the label should focus the input." But generating these IDs is harder than it looks. ❌ The Old Way: 1. Hardcoding (id="email"): Breaks if you render the component twice (duplicate ID error). 2. Random (Math.random()): Breaks Next.js Hydration. The server generates 0.123 and the client generates 0.789. React crashes. ✅ The Modern Way: Use useId. React generates a unique string (like :r0:) that is: • Stable: It matches perfectly during Server-Side Rendering (SSR) and Client Hydration. • Unique: You can render the component 50 times, and each one gets a unique ID. • Prefixable: You can combine it (${id}-error, ${id}-desc) for multiple related elements. The Shift: We are moving from "Manual Strings" to "Deterministic Generation." #ReactJS #NextJS #WebDevelopment #Accessibility #a11y #Frontend #JavaScript #CleanCode #TechTips #Tips #ReactTips #DeveloperTips #ReactHooks

Stop using Math.random() for IDs in React 👇. We often need unique IDs to connect a <label> to an <input> for accessibility. "Clicking the label should focus the input." But generating these IDs is harder than it looks. ❌ The Old Way: 1. Hardcoding (id="email"): Breaks if you render the component twice (duplicate ID error). 2. Random (Math.random()): Breaks Next.js Hydration. The server generates 0.123 and the client generates 0.789. React crashes. ✅ The Modern Way: Use useId. React generates a unique string (like :r0:) that is: • Stable: It matches perfectly during Server-Side Rendering (SSR) and Client Hydration. • Unique: You can render the component 50 times, and each one gets a unique ID. • Prefixable: You can combine it (${id}-error, ${id}-desc) for multiple related elements. The Shift: We are moving from "Manual Strings" to "Deterministic Generation." #ReactJS #NextJS #WebDevelopment #Accessibility #a11y #Frontend #JavaScript #CleanCode #TechTips #Tips #ReactTips #DeveloperTips #ReactHooks