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How Good Developers Write Bad Code (Without Even Realizing It)

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Good developers often write poor-quality code - not due to lack of skill - but due to subtle habits. Sometimes our habits lead us to unintentionally write code that might seem fine initially but causes headaches down the road.

Let’s explore six common ways even talented developers unintentionally create bad code.

1. Optimizing for Cleverness Instead of Clarity

Developers often take pride in crafting elegant solutions. However, prioritizing cleverness often comes at the expense of clarity.

// Clever but confusing
return IntStream.rangeClosed(1, n).reduce(1, (x, y) -> x * y);

While concise, this line of code can confuse even seasoned developers, especially if unfamiliar with streams.

Clearer Alternative:

public int factorial(int n) {
    int result = 1;
    for(int i = 2; i <= n; i++) {
        result *= i;
    }
    return result;
}

In reality, code is read far more often than it’s written. The cost of confusing code is significant. Future developers (including you) may spend hours deciphering it, increasing maintenance and debugging time. Prioritize readability - it’s cheaper and friendlier for your future self.