Can I check for a certain set of letters inside inputted letters and numbers? (C#)
478
How to determine if string contains specific substring within the first X characters
114670
How do I perform an expandable string comparison?
42559
(Built-in) way in JavaScript to check if a string is a valid number
143939
How do you use: isalnum, isdigit, isupper to test each character of a string?
34823
How to get the containing form of an input?
150196
C++ to check if user input is a number, not a character or a symbol
43229
How to check if a string contains only digits in Java
93393
How do I show only the first letters of a string?
41380
How to check if a given Regex is valid?
121612
Finding all numbers in a string
125449
Detecting if a string is all CAPS
39393
Pygame: Is there any easy way to find the letter/number of ANY alphanumeric pressed?
106839
Equivalent of Visual Basic's And and Or in C#?
2559
Is there a regular expression to detect a valid regular expression?
116138
Identify if a string is a number
153075
How to do case insensitive string comparison?
64565
How do I determine the highest and lowest value in user-entered input?