Summing Digits of an Integer

Calculate the sum of the digits of an integer

Technology Stack : Built-in functions isinstance, sum, abs, str, for loop

Code Type : Function

Code Difficulty :

                
                    
def sum_of_digits(number):
    if not isinstance(number, int):
        raise ValueError("Input must be an integer")
    return sum(int(digit) for digit in str(abs(number)))