Interactive Code Playground Examples

Welcome to the interactive code playground! This post demonstrates all three types of code components available in your lessons.

1. CodePlayground - Try It Live!

Edit and run JavaScript code directly in your browser:

JavaScript Playground

JavaScript

✓ Auto-saved

💡 Tip: Press Ctrl+Enter to run codeLines: 10 | Characters: 187

Features You Can Try:

Edit the code above
Click “Run Code” to see output
Use “Share” to create a shareable link
“Download” to save your code
Your changes auto-save!

2. Advanced Example - Array Manipulation

Array Operations

JavaScript

💡 Tip: Press Ctrl+Enter to run codeLines: 21 | Characters: 550

3. CodeSandbox - Full Project Environment

For more complex projects, we can embed full CodeSandbox environments:

React Starter Template

CodeSandbox

Open in CodeSandbox

💡 Edit the code directly in the sandbox

This embedded sandbox includes:

✅ Full React environment
✅ NPM package installation
✅ Multiple files
✅ Live preview
✅ Hot module reloading

4. Code Challenges - Test Your Skills!

Challenge 1: FizzBuzz (Easy)

FizzBuzz

EASY

Print numbers 1-100. For multiples of 3 print 'Fizz', for multiples of 5 print 'Buzz', for multiples of both print 'FizzBuzz'

💡 Write a function that passes all test cases2 test cases

Challenge 2: Palindrome Checker (Medium)

Palindrome Checker

MEDIUM

Determine if a given string is a palindrome (reads same forwards and backwards)

💡 Write a function that passes all test cases3 test cases

Challenge 3: Find Duplicates (Hard)

Find Duplicates

HARD

Find all duplicate values in an array. Return an array of unique duplicates.

💡 Write a function that passes all test cases3 test cases

5. TypeScript Support

You can also use TypeScript in the playground:

TypeScript Example

TypeScript

💡 Tip: Press Ctrl+Enter to run codeLines: 17 | Characters: 392

6. Read-Only Demo

Sometimes you want to show code without allowing edits:

Fibonacci Sequence (Demo)

JavaScript

💡 Tip: Press Ctrl+Enter to run codeLines: 10 | Characters: 248

Tips for Using Code Components

1. CodePlayground

✅ Best for: Quick JavaScript/TypeScript examples
✅ Use: Interactive tutorials, demos
✅ Auto-save: Add saveKey for important exercises

2. CodeSandbox

✅ Best for: Full projects, React/Vue apps
✅ Use: Complex examples with dependencies
✅ Create: Projects at codesandbox.io or stackblitz.com

3. CodeChallenge

✅ Best for: Practice problems, assessments
✅ Use: End-of-lesson exercises
✅ Include: Clear test cases and hints

Next Steps

Try solving all three challenges above
Experiment with the playgrounds
Create your own code examples
Share your solutions!

Happy coding! 🚀