Array.flatMap() In JavaScript - FAANG Interview Prep #shorts #javascript

Array.flatMap() - JavaScript Tutorial for Developers

Combines map() and flat() to transform and flatten arrays. Useful for nested data processing.

💻 Production-Ready Code:
const arr = [[1], [2, 3], [4]];
const flatMapped = arr.flatMap(x = x);
console.log(flatMapped);
// Output: [1, 2, 3, 4]

🎯 Why This Matters:
✅ Used in real-world applications
✅ Common in technical interviews
✅ Improves code quality & performance

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👨‍💻 Perfect for:
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