A regular expression to match repeating digits in a given number.
A regular expression to extract the filename from a given path.
A quick regular expression that matches all content before an underscore(_) in a string.
A quick regular expression to match and validate the Credit Card's CVV numbers.
A Regular Expression that matches all spaces and newlines but isn't in quotes.
A Regular Expression to match a 2-digit number, which can be helpful in validating a Credit/Debit Card issue number.
A regular expression that matches the last occurrence of characters in a string.
A Regular Expression to match a non-numeric string that is not composed entirely of numbers.
A regular expression to check the plausibility of a fully-qualified class name in Java.
A regular expression to match non-blank and non-empty strings.
A regular expression to get the text before the first separating character (like comma, space, etc).
A regular expression to match only alphabets and spaces.
A short Regular Expression that helps developers quickly extract and match a file extension from a string.
A regular expression to match hashtags (#) used in social media platforms.
A regular expression to validate Twitter username.
A useful regex pattern that matches a part of a string and ignores everything after a particular text.
A regular expression that matches everything after the last slash in a string (like a URL or a file/folder path).
A regular expression to simply match and validate comma-separated numbers in your data.
A regular expression to match valid filenames. Can be used to validate filenames entered by a user of an application, or the filename of files uploaded from a scanner.
A short yet useful regular expression that matches a number between 1 and 100.
A regular expression which can match anything except one or more words in a string. It is a handy one if you want to skip some words in your index file.