Regex is a regular expression, otherwise called - regexes, regex pattern, or regular expression pattern. Regex is a sequence of characters that define a search pattern. Usually, such patterns are used by string-searching algorithms for "find" or "find and replace" operations on strings, or for input validation.
Regex for checking if Debit Card is valid or not
Regex for checking if AWS ARN value is valid or not
Regex for matching words with hyphen and checking if its valid or not
Regex for checking if username is valid or not
Regex for checking if port value is in range from 0 to 65535.
Regex for checking random number is valid or not
Regex for checking one or more digits number