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curriculum/challenges/english/blocks/learn-how-to-work-with-numbers-and-strings-by-implementing-the-luhn-algorithm/6569b831a07d7154c793301b.md

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--description--

Define a function verify_card_number with a parameter card_number, and use the pass keyword to make the function do nothing.

--hints--

You should have a function called verify_card_number with a parameter called card_number.

js
({
    test: () => {
        const transformedCode = code.replace(/\r/g, "");
        const verify_card_number = __helpers.python.getDef("\n" + transformedCode, "verify_card_number");
        assert.exists(verify_card_number);
        const { function_parameters } = verify_card_number;
        assert.equal(function_parameters.trim(), "card_number");
    }
})

You should use the pass keyword in the body of the verify_card_number function.

js
({
    test: () => {
        const transformedCode = code.replace(/\r/g, "");
        const verify_card_number = __helpers.python.getDef("\n" + transformedCode, "verify_card_number");
        assert.exists(verify_card_number);
        const { function_body } = verify_card_number;
        assert.match(function_body, / +pass/);
    }
})

--seed--

--seed-contents--

py
--fcc-editable-region--

--fcc-editable-region--

def main():
    card_number = '4111-1111-4555-1142'
    card_translation = str.maketrans({'-': '', ' ': ''})
    translated_card_number = card_number.translate(card_translation)

    print(translated_card_number)

main()