curriculum/challenges/english/blocks/learn-how-to-work-with-numbers-and-strings-by-implementing-the-luhn-algorithm/65687e294ef2bdca637fb213.md
Return the result of comparing 0 to total modulo 10.
You should have return 0 == total % 10 within the verify_card_number function.
({
test: () => {
const transformedCode = code.replace(/\r/g, "");
const verify_card_number = __helpers.python.getDef("\n" + transformedCode, "verify_card_number");
const { function_body } = verify_card_number;
const acceptableMatches = [
/return +0 *== *total *% *10/,
/return +total *% *10 *== *0/
];
const someMatch = acceptableMatches.some((match) => {
return match.test(function_body);
});
assert.isTrue(someMatch);
}
})
def verify_card_number(card_number):
sum_of_odd_digits = 0
card_number_reversed = card_number[::-1]
odd_digits = card_number_reversed[::2]
for digit in odd_digits:
sum_of_odd_digits += int(digit)
sum_of_even_digits = 0
even_digits = card_number_reversed[1::2]
for digit in even_digits:
number = int(digit) * 2
if number >= 10:
number = (number // 10) + (number % 10)
sum_of_even_digits += number
--fcc-editable-region--
total = sum_of_odd_digits + sum_of_even_digits
print(total)
--fcc-editable-region--
def main():
card_number = '4111-1111-4555-1142'
card_translation = str.maketrans({'-': '', ' ': ''})
translated_card_number = card_number.translate(card_translation)
verify_card_number(translated_card_number)
main()