The most common answer to the 7.1.8 Citation CodeHS is:

def citation(names):
    author_name = ((names))
    name = str(names[2]) + ", " + str(names[0]) + " "+  str(names[1])
    return name
print(citation(["Martin", "Luther", "King, Jr"]))

The function citation is intended to format an author’s name into a citation format. However, there’s an issue with the way it handles the names array, particularly with the assumption of the array structure and the handling of names like “King, Jr., Martin Luther”.

Let’s modify the function to handle an array of names more effectively:

def citation(names):
    # Assuming the names array is structured as [first_name, middle_name, last_name]
    if len(names) == 3:
        # For full names with a middle name
        formatted_name = f"{names[2]}, {names[0]} {names[1]}"
    elif len(names) == 2:
        # For names without a middle name
        formatted_name = f"{names[1]}, {names[0]}"
    else:
        # Fallback for any other case (like just a single name)
        formatted_name = names[0]

    return formatted_name

print(citation(["Martin", "Luther", "King, Jr."]))

This function now:

1. Checks the length of the names array to determine how to format the name.
2. If there are three elements, it assumes the format [first_name, middle_name, last_name].
3. If there are two elements, it assumes the format [first_name, last_name].
4. For one element, it just returns the name as is.

This will handle a wider variety of name formats more robustly.

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