All Questions
Tagged with finance validation
16
questions
3
votes
3
answers
2k
views
Simple credit card validation with Luhn's Algorithm
Originally written in C (which was abysmal, you may check here if you want), I rewrote my simple credit card validation program using Python
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- 143
6
votes
2
answers
291
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Asynchronous IBAN API with validation
I am working on an iban api which is about saving the iban of some members after (iban validation) in a database. The code is split between Domain (entities, behaviour for iban validation), Database ...
- 1,131
3
votes
2
answers
2k
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Validating Card Number in Delphi
As part of processing card payments, before even attempting to process, I need to check and validate the card number to make sure it's valid. For this, I've encapsulated this validation in a record ...
- 629
12
votes
5
answers
6k
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Credit card validation
I started following Harvard's CS50 (Introduction to Computer Science) on edX, and as part of their Hacker edition set 1 was the following assignment:
I am supposed to write a program (in C), that ...
- 823
3
votes
1
answer
2k
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Calculate sales tax from tabular data
This is a Python 3 solution to the problem stated in Sales Tax Problem, rejected for not being up to their standards. It also seems like the same thing as the problem stated in Sales tax calculator, ...
- 266
2
votes
3
answers
224
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ADT for a TVM calculator
I wanted to get some criticism for the below ADT. This is just a basic ADT that will be fed into a TVM calculator. Main purpose is to have it initialized and correct for input errors.
Full disclosure:...
- 83
4
votes
1
answer
2k
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Luhn algorithm MS-SQL
This a solution Luhn algorithm for credit validation.
This algorithm is a basic one inspired by wikipedia. I mean no check for length, type, and so on. You can enhance the base code as you want it to ...
- 41
3
votes
1
answer
909
views
3
votes
2
answers
98
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Removing synchronization from an agent for a trading system
Is there any way to easily remove synchronization from this code, when there is a validation step before acquiring a lock?
I tried an ...
- 191
4
votes
2
answers
2k
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Credit card checking
I am practicing test-driven development in Python. Feedback about both the tests and the code is appreciated. I'm using luhn algorithm and regex to check credit card numbers for validity.
Here are ...
- 638
18
votes
3
answers
12k
views
Credit card validator using Luhn's algorithm
I'm writing an algorithm to read from a file a list of numbers, and for each, determine if it is valid. If it is, then display which card type it is.
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- 879
7
votes
2
answers
24k
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Bank account number validation in IBAN format
I wrote a JavaScript function for validating bank account numbers in IBAN format for my own joy. Could you have a look if you don't see any obvious mistakes or places for improvement?
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11
votes
3
answers
3k
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Bank card validation module
I hope that someone could review a module I wrote for bank card validation. I included a class that tests some of the methods, which is purely to show the methods work, rather than unit testing.
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- 225
20
votes
3
answers
5k
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Credit card verification: string conversion most optimal?
Below is some code which verifies a credit card number using the checksum as well as check if number of digits are appropriate as well if digits start with right numbers. I am not sure if converting ...
- 583
3
votes
1
answer
181
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