Master Programming Through Clean Code
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Code That Speaks for Itself
Practical, production-ready code snippets you can use today
Async/Await Error Handling
Clean error handling pattern for async operations
async function fetchData() {
try {
const response = await fetch('/api/data');
return await response.json();
} catch (error) {
console.error('Failed:', error);
throw error;
}
}Custom React Hook
Reusable state management with localStorage
function useLocalStorage(key, initial) {
const [value, setValue] = useState(() => {
const stored = localStorage.getItem(key);
return stored ? JSON.parse(stored) : initial;
});
useEffect(() => {
localStorage.setItem(key, JSON.stringify(value));
}, [key, value]);
return [value, setValue];
}Array Utilities
Functional programming helpers for arrays
const unique = arr => [...new Set(arr)];
const chunk = (arr, size) =>
Array.from({ length: Math.ceil(arr.length / size) },
(_, i) => arr.slice(i * size, i * size + size)
);Explore by Topic
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