Are you looking to level up your JavaScript and Node.js skills? Whether you're a beginner starting your coding journey or an experienced developer wanting to sharpen your backend skills, I've created a comprehensive collection of coding challenges that will take you from fundamentals to advanced concepts through practical, real-world exercises.
Why This Challenge Collection?
This isn't just another tutorial list - it's a structured learning path designed to build your skills progressively. Here's what makes it different:
- Progressive Difficulty: Start with basics, end with advanced algorithms
- Real-World Scenarios: E-commerce, blog APIs, inventory management
- Complete Solutions: Every challenge includes detailed examples
- Structured Learning: Numbered files guide your learning journey
What's New in the Collection?
JavaScript Fundamentals (3 Files)
01-basic-javascript-challenges.md
- Core JavaScript concepts
- Array and string manipulation
- Object handling
- 25 beginner-friendly challenges
02-intermediate-javascript-challenges.md
- Advanced array methods
- Custom filter/map/reduce implementations
- Complex object manipulation
- Real-world data processing
03-advanced-javascript-challenges.md
- Data structures (LRU Cache, BST, Graphs)
- Algorithms (QuickSort, Dijkstra, Binary Search)
- Functional programming patterns
- Performance optimization
Node.js & Express.js (5 Files)
01-beginner-express-challenges.md
- Express server setup and configuration
- Basic routing with HTTP methods
- URL parameters and query handling
02-express-middleware-challenges.md
- Middleware implementation and chaining
- Role-based access control
- Error handling and validation
03-nodejs-data-manipulation-challenges.md
- Data aggregation and transformation
- Working with related datasets
- Complex data structure handling
04-ecommerce-order-management-challenges.md
- Complex data relationships
- Customer analytics and reporting
- Order processing systems
05-express-blog-api-challenges.md
- RESTful API design principles
- HTTP status code usage
- Production-ready API development
Quick Start Guide
Prerequisites
- Node.js (v14 or higher)
- Basic JavaScript knowledge
- Code editor (VS Code recommended)
Setup in 2 Minutes
# Clone the repository
git clone https://github.com/mohin-sheikh/js-node-coding-questions.git
cd js-node-coding-questions
# Initialize your project
npm init -y
npm install express
# Create server file
touch index.js
Basic Server Template
const express = require('express');
const app = express();
const PORT = 3000;
app.use(express.json());
// Your routes go here
app.listen(PORT, () => {
console.log(`Server running on http://localhost:${PORT}`);
});
Structured Learning Path
Phase 1: JavaScript Foundation (3-4 weeks)
Start with basic JavaScript challenges to build solid fundamentals before moving to backend development.
Phase 2: Backend Development (8-10 weeks)
Progress through Express.js basics, middleware, data manipulation, and real-world applications.
Phase 3: Mastery (4-6 weeks)
Tackle advanced algorithms, data structures, and complex system design.
Real Projects You'll Build
- E-commerce Analytics System: Process orders, calculate revenue, analyze customer behavior
- Blog API with Comments: Full CRUD operations, search, pagination
- Inventory Management: Track stock, generate reports, handle low inventory
- Financial Analytics: Transaction processing, category-wise spending reports
- Employee Management System: Department analytics, skill gap analysis
Testing Your Solutions
Use these tools to verify your work:
# Test JavaScript functions
node -e "console.log(require('./your-solution.js').yourFunction())"
# Test API endpoints
curl http://localhost:3000/api/posts
# Test with authentication
curl -H "Authorization: Bearer token" http://localhost:3000/api/users
Key Skills You'll Master
Technical Skills
- Express.js routing and middleware
- RESTful API design and development
- Data structures and algorithms
- Error handling and validation
- Performance optimization
Problem-Solving Skills
- Breaking down complex problems
- Algorithmic thinking
- System design principles
- Code optimization techniques
Success Stories from Learners
"The progressive structure helped me go from JavaScript basics to building full APIs in 2 months!" - Frontend Developer transitioning to Full Stack
"The real-world scenarios prepared me perfectly for technical interviews." - Recent Bootcamp Graduate
"Finally found a resource that covers everything from arrays to advanced algorithms!" - Self-Taught Developer
Pro Tips for Maximum Impact
- Code Daily: Even 30 minutes daily beats 4 hours once a week
- Understand Don't Memorize: Focus on the 'why' behind solutions
- Build Projects: Apply concepts to personal projects
- Review Regularly: Revisit previous challenges to reinforce learning
- Join Community: Discuss solutions and learn from others
Get Started Today
Repository: github.com/mohin-sheikh/js-node-coding-questions
Your First Week Plan
- Day 1-2: Complete basic JavaScript challenges
- Day 3-4: Set up Express server and basic routes
- Day 5-7: Build your first API endpoint
For Experienced Developers
Skip to intermediate/advanced challenges that match your current level and focus on gaps in your knowledge.
Continuous Updates
The repository is actively maintained with:
- New challenges added regularly
- Community contributions welcomed
- Solutions improved based on feedback
- Additional learning resources
Ready to Transform Your Skills?
This collection represents hundreds of hours of curated content designed to take you from wherever you are now to JavaScript and Node.js mastery.
Start today with the first challenge and commit to completing one challenge daily. In 2-3 months, you'll have the skills to build complex backend systems and ace technical interviews.
Share Your Journey
I'd love to see your progress! Share your solutions, ask questions, and connect with other learners through the repository's discussion section.
What's the biggest challenge you're facing in learning Node.js? Share in the comments below!
Follow me on GitHub for more learning resources and updates on new challenges!
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