What are some examples of clean code in different programming languages?

What are some examples of clean code in different programming languages?

Clean code refers to code that is easy to read, understand, and maintain. Here are examples in a few languages:

1. Python: Using meaningful variable names and functions, like def calculate_area(radius): instead of def ca(r):.
2. Java: Following naming conventions and using comments effectively, e.g., // Calculate the area of a circle before the method.
3. JavaScript: Keeping functions small and focused, like function fetchData(url) { ... } instead of large, monolithic functions.

Can you show me a specific example in Python?

Sure! Here's a simple example of clean code in Python:

def calculate_area(radius):
    """Calculate the area of a circle given its radius."""
    return 3.14 * radius ** 2

area = calculate_area(5)
print(f'The area is: {area}')

This code uses a clear function name, a docstring for documentation, and meaningful variable names.

What about in Java?

In Java, a clean code example could look like this:

public class Circle {
    private double radius;

    public Circle(double radius) {
        this.radius = radius;
    }

    public double calculateArea() {
        return Math.PI * radius * radius;
    }
}

Circle circle = new Circle(5);
System.out.println("The area is: " + circle.calculateArea());

This code uses a class to encapsulate the behavior and keeps methods focused and clear.

Can you give me a JavaScript example?

Absolutely! Here's a clean code example in JavaScript:

function calculateArea(radius) {
    return Math.PI * Math.pow(radius, 2);
}

const area = calculateArea(5);
console.log(`The area is: ${area}`);

This example uses a clear function name and template literals for output, making it easy to read and understand.