Beginner question returning a boolean value from a function in python

When working with Python, it is common to encounter situations where you need to return a boolean value from a function. This can be useful for various purposes, such as checking if a condition is true or false, or determining the success or failure of a certain operation.

Option 1: Using a simple if statement

def is_even(number):
    if number % 2 == 0:
        return True
        return False

In this option, we define a function called is_even that takes a number as input. We use an if statement to check if the number is divisible by 2 without a remainder. If it is, we return True, indicating that the number is even. Otherwise, we return False, indicating that the number is odd.

Option 2: Using a ternary operator

def is_even(number):
    return True if number % 2 == 0 else False

In this option, we use a ternary operator to achieve the same result as in option 1. The ternary operator is a concise way of writing an if-else statement in a single line. It evaluates the condition number % 2 == 0 and returns True if it is true, and False otherwise.

Option 3: Returning the result of the condition directly

def is_even(number):
    return number % 2 == 0

In this option, we simplify the code even further by directly returning the result of the condition number % 2 == 0. This condition evaluates to either True or False, so we can directly return it without the need for an if statement or ternary operator.

After analyzing the three options, it is clear that option 3 is the best choice. It is the most concise and readable solution, as it eliminates the need for unnecessary if statements or ternary operators. By directly returning the result of the condition, the code becomes more straightforward and easier to understand.

Rate this post

12 Responses

    1. I couldnt disagree more. Option 3 might get the job done, but it sacrifices flexibility and maintainability. I prefer option 2 for its scalability and robustness. Different strokes for different folks, I guess.

    1. Totally disagree! Option 3 may seem clean, but it sacrifices readability and flexibility. Using if statements or ternaries allows for better control and error handling. Dont underestimate the power of structured and maintainable code.

    1. Sorry, but I have to disagree. While option 3 may seem convenient, it often sacrifices readability and maintainability. Extra steps can be beneficial for debugging and code reviews. Lets not forget the importance of code quality in the long run.

  1. Option 2 with the ternary operator is like adding a little spice to your code. Who doesnt like some flavor in Python?

    1. Totally agree! The ternary operator in Python adds that extra touch of elegance and saves precious lines of code. Its like a secret ingredient that takes your code from bland to exciting. Who needs boring when you can have flavor in your programming?

Leave a Reply

Your email address will not be published. Required fields are marked *

Table of Contents