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 else: 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
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
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.