Codewars: Multiply Function

Overview

Codewars is a website that provides programming challenges and exercises for developers to improve their skills. One of the challenges on the website is to create a multiply function, which is what we will be discussing in this post.

The challenge is to create a function called multiply that takes in a parameter ab and returns the product of a and b. The function should work for both positive and negative numbers.

Code Solution

Here is a possible solution to the multiply function:

def multiply(ab):
    a, b = ab
    return a * b

This code takes in a tuple ab containing two values a and b, and returns their product.

Testing

In order to test the multiply function, we can create some test cases. Here are a few examples:

assert multiply((5, 6)) == 30
assert multiply((-5, 6)) == -30
assert multiply((5, -6)) == -30
assert multiply((-5, -6)) == 30

These test cases check if the multiply function works for positive and negative numbers.

Conclusion

The multiply function is a simple yet useful function that can be used in various situations. By solving the challenge on Codewars, developers can practice their coding skills and become better at programming.