JavaScript Closure Challenge — Can You Predict the Output? #javascript #shorts #trending

🔍 Explanation:

This is a classic example of JavaScript closures.

The IIFE (Immediately Invoked Function Expression) creates a private scope where y = 10.

It returns a function that remembers y due to closure.

On the first call x(), y += 5 makes y = 15, so it returns 15.

On the second call x(), y += 5 makes y = 20, so it returns 20.

✅ So console.log(x()); outputs:
15
20

This question is perfect for testing deep understanding of closures and persistent state in JavaScript.

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