Developer Cheat Sheets
Quick reference guides and cheat sheets to boost your development productivity
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Available Cheat Sheets
Downloadable PDF references for quick access
JavaScript ES6+ Cheat Sheet
Modern JavaScript syntax, methods, and features
React Hooks Reference
Complete guide to React hooks with examples
CSS Flexbox & Grid
Layout properties and values for modern CSS
TypeScript Types Guide
Types, interfaces, and advanced TypeScript patterns
Node.js API Reference
Essential Node.js modules and methods
Git Commands Cheat Sheet
Most used Git commands and workflows
Docker Commands Reference
Docker CLI commands and Dockerfile syntax
SQL Query Reference
Common SQL queries and database operations
Python Quick Reference
Python syntax, built-in functions, and libraries
VS Code Shortcuts
Keyboard shortcuts for faster development
Quick References
Instant lookup for common values and codes
HTTP Status Codes
200OK - Success404Not Found500Internal Server Error401UnauthorizedCSS Units
pxPixels (absolute)emRelative to parent font sizeremRelative to root font sizevh/vwViewport height/widthJavaScript Array Methods
map()Transform each elementfilter()Filter elementsreduce()Reduce to single valueforEach()Execute for each elementCommon Code Patterns
Ready-to-use code snippets for common tasks
Fetch API Pattern
JavaScript// Modern fetch with error handling
async function fetchData(url) {
try {
const response = await fetch(url);
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`);
}
const data = await response.json();
return data;
} catch (error) {
console.error('Fetch error:', error);
throw error;
}
}React useState Hook
React// useState with object state
const [user, setUser] = useState({
name: '',
email: '',
isActive: false
});
// Update specific property
const updateUser = (field, value) => {
setUser(prev => ({
...prev,
[field]: value
}));
};Stay Updated with New Cheat Sheets
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