Code Wars C# 7 kyu: Regex Validate PIN Code

Описание

Beginner level C# object oriented programming series. Viewers are provided a string representing an attempt at an ATM PIN code entry. They must perform basic validation, checking whether the input pin contains only digits and is of length 4 or 6. The solution shown will use regular expressions.

The best way to learn computer programming is by actually writing code. Create a Code Wars account at www.codewars.com/r/3jPbdQ to follow along. No downloads required- you can start coding right away from your favorite browser. Coding challenges can be quite fun too, like puzzles and brain teasers. This challenge may be found at: https://www.codewars.com/kata/55f8a9c06c018a0d6e000132/