* Checks integers if they are in an odd position or if they equate to a number over 9 */įor (let i = arr. My code works, but I wanted to learn about a more efficient and more Pythonic way of doing this. Removes last digit and stores the last digit in the array to nDigit Ive implemented Luhns algorithm for checking credit card numbers. Function to all array elements togetherĬonst reducer = (accumulator, currentvalue) => accumulator + currentvalue So I’m not sure how that happens, I even tried doing the math with valid3 manually and I also got i to false. Here are the steps involved in Luhn Algorithms. And I got all invalid elements except invalid3 to print out that it’s false. Most credit card companies adopted this algorithm as this was available in the public domain and can be used by anyone. I got all the valid arrays except valid3 to print out that it’s true. So here is the updated code I changed the for loop a bit and added comments to make it easier to read. Ohh yes the pop thing might actually not be worth even having inside the code now when you mention it, will try to remove it and see how it goes int he future code, thanks for that tip! I don’t see where the code goes wrong, and I’ve checked various spots for the correct output and they all seem to be what I expected but something somewhere must have gone wrong, because multiple valid arrays are not being recognized. const reducer = (accumulator, currentvalue) => accumulator + currentvalue This check is run by the Credit Card Validator tool to ensure that the number is. GitHub - karancodes/credit-card-validator: A simple C++ program I wr. A merchant can validate the credit card number before accepting a customer's payment. A simple C++ program I wrote in my first computing course SFU which validates credit card numbers using Luhn's Algorithm. The CC generator generates credit card numbers under specific protocols and rules. That process gains importance as monetary affairs become sensitive. However I now have a new updated code but there is still an error somewhere because the valid numbers aren’t recognized as valid. The Luhn Algorithm is a check that is used to validate credit card numbers. Credit card validation is the process of validating the genuineness of a credit card. Linked in the codeecademy prerequisites however I see now that there are differences between what that links says to do and what the actual project wants me to do.
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