🚀 React Interview Prep | Debounce & Throttle (Hands-on) Recently, I solved a React mock interview question asked by Anurag Singh (ProCodrr – YouTube), focused on implementing Debounce and Throttle from scratch using React Hooks. 💡 What I implemented: Normal click handling Debounce logic using useCallback and useRef Throttle logic using useCallback and useRef Practical comparison of how each behaves on rapid clicks 🧠 Key Learnings: How closures work inside debounce/throttle Why useRef is preferred over useState for mutable values When to use debounce vs throttle in real-world applications This exercise helped me deeply understand performance optimization patterns in React — something interviewers often look for beyond theory. Huge shout-out to Anurag Singh bhai for creating such mock interviews on YouTube. They are extremely helpful for interview preparation 🙌 #ReactJS #JavaScript #FrontendDevelopment #WebPerformance #Debounce #Throttle #ReactHooks #InterviewPreparation #LearningByBuilding
More Relevant Posts
-
😈💻Type conversion, coercion, and hidden rules make JS tricky ⚠️That’s why practicing these questions is super important for interviews 🎯Comment your answer below 👇Did you get it right? 😎Follow door2dev for more developer content 🔥#javascriptdeveloper #interviewprep #codingtips #reelsindia #programmingmemes
To view or add a comment, sign in
-
Type Script Interview question you’ll almost definitely face. I’m starting a short series about real TypeScript challenges from interviews — and we’ll begin with one of the most popular ones: implementing Pick. You’ll often get a task like this: “Recreate the Pick utility type.” The solution is below in the screenshot 👇 At first, it looks simple. But this task checks whether you really understand the fundamentals. It shows how well you understand generics, what keyof really means, how mapped types work, and how TypeScript connects keys to value types. In short, you’re creating a new type by selecting only specific properties — safely and strictly. If you can explain this clearly in an interview, you’re already ahead of many candidates. More Type Script Interview challenges coming soon. #react #frontend #typescript #javascript #javascriptinterview #typescriptinterview #frontendinterview #codinginterview #webdevelopment #programming #softwareengineering #devcareers
To view or add a comment, sign in
-
-
At first glance, eager vs lazy initialization looks like a small detail… but in real interviews, this question tests how well you understand React rendering behavior. 🧠 Do you know when the initial state is evaluated? ⚡ And why lazy initialization can improve performance? #ReactJS #FrontendDevelopment #ReactInterview #JavaScript #WebDevelopment
To view or add a comment, sign in
-
-
React JS Interview Practice – Episode 09 A simple question… but very common in React interviews: 👉 How do you change a component’s background color when it is clicked? In this episode, I explained: ✔ Managing state using useState ✔ Handling click events in React ✔ Dynamic styling based on state ✔ Understanding React re-rendering Even small questions like this test your clarity of fundamentals. 📌 Part of: 30 Days Coding with The Vinia 🎯 Goal: Strengthen React fundamentals through real interview-based practice. If you're preparing for frontend interviews or improving your React skills, consistency in solving such practical problems makes a huge difference. 💬 Comment “React” if you want the complete interview practice roadmap. 🔔 Follow for daily coding and interview-focused content. #ReactJS #ReactInterview #FrontendDevelopment #WebDevelopment #JavaScript #CodingPractice #ReactHooks #TechEducation
React Interview Series | Dynamic Styling & Click Events (Ep 09)
To view or add a comment, sign in
-
30 Days Coding with The Vinia – Episode 01 Preparing for React JS interviews? Let’s start with a basic but must-know question 👇 Q1: Create a simple “Hello World” React component 🎯 Perfect for beginners & interview preparation 📌 Follow for daily React practice 📺 New episodes coming daily #ReactJS #ReactInterview #FrontendDeveloper #WebDevelopment #CodingPractice #JavaScript #TheVinia
React JS Interview Practice | Episode 01 | Hello World Component
To view or add a comment, sign in
-
⚛️ React Interview Revision Series | Day 1 🚀 Revisiting 𝐑𝐞𝐚𝐜𝐭.𝐣𝐬 𝐟𝐮𝐧𝐝𝐚𝐦𝐞𝐧𝐭𝐚𝐥𝐬 as part of my interview preparation. 📌 Topics revised today: • What is React & why it is used • Component-based architecture • Difference between React and traditional JavaScript UI handling • Overview of Virtual DOM Focusing on clarity of concepts that are commonly discussed in React interviews. Along with React, I’m also revising: ☕ Core Java 🧠 DSA Preparing to perform better in technical interviews. Any interview tips related to this topic?😊 #ReactJS #ReactInterview #FrontendDevelopment #WebDevelopment #PlacementPreparation
To view or add a comment, sign in
-
✨ 25 JavaScript Interview Questions — Easy → Hard JavaScript interviews don’t just test syntax. They test how deeply you understand the language. In this post, I’ve shared 25 carefully structured JS interview questions (with answers) — starting from basics and gradually moving to advanced concepts. The goal? 👉 Build confidence step by step 👉 Strengthen fundamentals 👉 Improve problem-solving depth Whether you’re: • Preparing for interviews • Revising core concepts • Moving toward advanced JS • Or aiming for frontend roles This will sharpen your clarity and thinking. 👇 Be honest — which level feels toughest in JS interviews? Easy, Medium, or Hard? #JavaScript #FrontendDevelopment #WebDevelopment #CodingCommunity #InterviewPreparation #React #100DaysOfCode
To view or add a comment, sign in
-
Day 15: 5 JavaScript Interview Questions 🚀 Description: These JavaScript interview questions are designed to check your core fundamentals, not just syntax. If you clearly understand concepts like scope, comparison, and events, you can easily crack beginner to mid-level JS interviews. Try answering each question yourself before checking any reference—this builds real confidence. Questions: 1️⃣ What is the difference between var, let, and const in JavaScript? 2️⃣ What is a closure in JavaScript? 3️⃣ What is the difference between == and ===? 4️⃣ What is event bubbling in JavaScript? 5️⃣ What is the difference between undefined and null? Hashtags: #JavaScript #JSInterview #FrontendDeveloper #WebDevelopment #CodingInterview #LearnJavaScript #DeveloperTips #Day15
To view or add a comment, sign in
-
Most #React interviews fail people for one reason 👇 They use React every day — but can’t explain it. Questions like: ❌ Virtual DOM vs Real DOM ❌ Props vs State ❌ Dependency arrays ❌ Re-render behavior Nothing fancy. Just fundamentals. That’s why I’ve put together a ReactJS Interview Questions PDF 📄 Designed to help you explain what you already know — clearly and confidently. What you’ll find: ✅ Structured questions (Basic → Advanced) ✅ Clear reasoning, not textbook fluff ✅ Exactly what interviewers listen for If React interviews feel unpredictable — this will help. 👉 Follow #thevinia for frontend, system design & interview prep. #ReactJS #FrontendDeveloper #InterviewPrep #WebDevelopment
To view or add a comment, sign in
-
Most #React interviews fail people for one reason 👇 They use React every day — but can’t explain it. Questions like: ❌ Virtual DOM vs Real DOM ❌ Props vs State ❌ Dependency arrays ❌ Re-render behavior Nothing fancy. Just fundamentals. That’s why I’ve put together a ReactJS Interview Questions PDF 📄 Designed to help you explain what you already know — clearly and confidently. What you’ll find: ✅ Structured questions (Basic → Advanced) ✅ Clear reasoning, not textbook fluff ✅ Exactly what interviewers listen for If React interviews feel unpredictable — this will help. #ReactJS #FrontendDeveloper #InterviewPrep #WebDevelopment
To view or add a comment, sign in
Explore related topics
- Advanced React Interview Questions for Developers
- Mock Interviews for Coding Tests
- Front-end Development with React
- Coding Techniques for Technical Interviews
- Tips for Coding Interview Preparation
- Key Skills for Backend Developer Interviews
- Tips to Navigate the Developer Interview Process
- Common Algorithms for Coding Interviews
- Effective Code Optimization Practices
- Common Coding Interview Mistakes to Avoid
Explore content categories
- Career
- Productivity
- Finance
- Soft Skills & Emotional Intelligence
- Project Management
- Education
- Technology
- Leadership
- Ecommerce
- User Experience
- Recruitment & HR
- Customer Experience
- Real Estate
- Marketing
- Sales
- Retail & Merchandising
- Science
- Supply Chain Management
- Future Of Work
- Consulting
- Writing
- Economics
- Artificial Intelligence
- Employee Experience
- Workplace Trends
- Fundraising
- Networking
- Corporate Social Responsibility
- Negotiation
- Communication
- Engineering
- Hospitality & Tourism
- Business Strategy
- Change Management
- Organizational Culture
- Design
- Innovation
- Event Planning
- Training & Development