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🔧 Refactor DIFF format and add credit card gen tests
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,59 @@ | ||
| // Function to generate a credit card number | ||
| function generateCreditCardNumber() { | ||
| // Define the prefix for Visa cards | ||
| const prefix = "400000" | ||
| // Define the total length of the credit card number | ||
| const length = 16 | ||
| // Initialize the card number with the prefix | ||
| let cardNumber = prefix | ||
|
|
||
| // Loop until the card number reaches the desired length minus the check digit | ||
| while (cardNumber.length < length - 1) { | ||
| // Append a random digit to the card number | ||
| cardNumber += Math.floor(Math.random() * 10).toString() | ||
| } | ||
|
|
||
| // Append the check digit to the card number | ||
| cardNumber += getCheckDigit(cardNumber) | ||
| // Return the complete card number | ||
| return cardNumber | ||
| } | ||
|
|
||
| // Function to calculate the check digit using the Luhn algorithm | ||
| function getCheckDigit(cardNumber) { | ||
| // Initialize the sum to 0 | ||
| let sum = 0 | ||
| // Flag to determine whether to double the digit or not | ||
| let shouldDouble = true | ||
|
|
||
| // Loop through the card number digits from right to left | ||
| for (let i = cardNumber.length - 1; i >= 0; i--) { | ||
| // Parse the current digit | ||
| let digit = parseInt(cardNumber.charAt(i)) | ||
|
|
||
| // If the flag is set, double the digit | ||
| if (shouldDouble) { | ||
| digit *= 2 | ||
| // If the doubled digit is greater than 9, subtract 9 | ||
| if (digit > 9) { | ||
| digit -= 9 | ||
| } | ||
| } | ||
|
|
||
| // Add the digit to the sum | ||
| sum += digit | ||
| // Toggle the flag for the next digit | ||
| shouldDouble = !shouldDouble | ||
| } | ||
|
|
||
| // Calculate the check digit | ||
| const checkDigit = newFunction(sum) | ||
| // Return the check digit as a string | ||
| return checkDigit.toString() | ||
| } | ||
|
|
||
| function newFunction(sum) { | ||
| // TODO | ||
| return 0 | ||
| // return (10 - (sum % 10)) % 10; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| # Function to generate a credit card number | ||
| def generate_credit_card_number(): | ||
| # Define the prefix for Visa cards | ||
| prefix = "400000" | ||
| # Define the total length of the credit card number | ||
| length = 16 | ||
| # Initialize the card number with the prefix | ||
| card_number = prefix | ||
|
|
||
| # Loop until the card number reaches the desired length minus the check digit | ||
| while len(card_number) < length - 1: | ||
| # Append a random digit to the card number | ||
| card_number += str(random.randint(0, 9)) | ||
|
|
||
| # Append the check digit to the card number | ||
| card_number += get_check_digit(card_number) | ||
| # Return the complete card number | ||
| return card_number | ||
|
|
||
| # Function to calculate the check digit using the Luhn algorithm | ||
| def get_check_digit(card_number): | ||
| # Initialize the sum to 0 | ||
| sum = 0 | ||
| # Flag to determine whether to double the digit or not | ||
| should_double = True | ||
|
|
||
| # Loop through the card number digits from right to left | ||
| for digit in reversed(card_number): | ||
| digit = int(digit) | ||
|
|
||
| # If the flag is set, double the digit | ||
| if should_double: | ||
| digit *= 2 | ||
| # If the doubled digit is greater than 9, subtract 9 | ||
| if digit > 9: | ||
| digit -= 9 | ||
|
|
||
| # Add the digit to the sum | ||
| sum += digit | ||
| # Toggle the flag for the next digit | ||
| should_double = not should_double | ||
|
|
||
| # Calculate the check digit | ||
| check_digit = new_function(sum) | ||
| # Return the check digit as a string | ||
| return str(check_digit) | ||
|
|
||
| def new_function(sum): | ||
| # TODO | ||
| return 0 | ||
| # return (10 - (sum % 10)) % 10; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,59 @@ | ||
| // Function to generate a credit card number | ||
| function generateCreditCardNumber(): string { | ||
| // Define the prefix for Visa cards | ||
| const prefix = "400000" | ||
| // Define the total length of the credit card number | ||
| const length = 16 | ||
| // Initialize the card number with the prefix | ||
| let cardNumber = prefix | ||
|
|
||
| // Loop until the card number reaches the desired length minus the check digit | ||
| while (cardNumber.length < length - 1) { | ||
| // Append a random digit to the card number | ||
| cardNumber += Math.floor(Math.random() * 10).toString() | ||
| } | ||
|
|
||
| // Append the check digit to the card number | ||
| cardNumber += getCheckDigit(cardNumber) | ||
| // Return the complete card number | ||
| return cardNumber | ||
| } | ||
|
|
||
| // Function to calculate the check digit using the Luhn algorithm | ||
| function getCheckDigit(cardNumber: string): string { | ||
| // Initialize the sum to 0 | ||
| let sum = 0 | ||
| // Flag to determine whether to double the digit or not | ||
| let shouldDouble = true | ||
|
|
||
| // Loop through the card number digits from right to left | ||
| for (let i = cardNumber.length - 1; i >= 0; i--) { | ||
| // Parse the current digit | ||
| let digit = parseInt(cardNumber.charAt(i)) | ||
|
|
||
| // If the flag is set, double the digit | ||
| if (shouldDouble) { | ||
| digit *= 2 | ||
| // If the doubled digit is greater than 9, subtract 9 | ||
| if (digit > 9) { | ||
| digit -= 9 | ||
| } | ||
| } | ||
|
|
||
| // Add the digit to the sum | ||
| sum += digit | ||
| // Toggle the flag for the next digit | ||
| shouldDouble = !shouldDouble | ||
| } | ||
|
|
||
| // Calculate the check digit | ||
| const checkDigit = newFunction(sum) | ||
| // Return the check digit as a string | ||
| return checkDigit.toString() | ||
| } | ||
|
|
||
| function newFunction(sum: number) { | ||
| // TODO | ||
| return 0 | ||
| // return (10 - (sum % 10)) % 10; | ||
| } |
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