Question

I want this function to return None if the lengths of a and b are the same, but it does not do that. def longer(a: str, b: str): return a if len(a) > len(b) else b

Answer 1

The correct subject for this question is Computers and Technology, which deals with programming functions. To make the provided function return

Step-by-step explanation:

The correct answer is option Mathematics, as the question pertains to a programming function, but since no specific programming language is noted, and functions do operate on logical and mathematical principles, Mathematics can serve as the general category.

However, the more appropriate subject would be Computers and Technology, considering the context of programming and code behavior.

Your function currently returns the longer string, or 'b' if they are of equal length, but never returns 'None'. To fix this, you could modify the function to:

def longer(a: str, b: str):
if len(a) == len(b):
return None
return a if len(a) > len(b) else b

With this change, the function will now correctly return None if the lengths of 'a' and 'b' are the same, otherwise it will return the longer string.