What are return values in functions?

Can you explain what return values in functions are?

Sure! Return values are the outputs that a function produces after executing its code. They allow functions to send data back to the caller.

Why are return values important in programming?

Return values are crucial because they enable functions to provide results that can be used elsewhere in the program, promoting code reusability.

Can you give me an example of a function with a return value?

Absolutely! Here's a simple example in Python:

def add(a, b):
    return a + b

This function takes two numbers, adds them, and returns the result.

What happens if a function doesn't have a return value?

If a function doesn't have a return value, it implicitly returns None in Python. This means it won't provide any output to the caller.