Usernames are used everywhere on the internet. They are what give users a unique identity on their favorite sites. You need to check all the usernames in a database. Here are some simple rules that users have to follow when creating their username. Usernames can only use alpha-numeric characters. ...

Match everything in between quotes

regular expression for syllabifying words in toki pona

Exercises for the class with racket

This will match all strings starting and ending with the same letters that are specified in the capturing group (in the parentheses).

a regex for matching words according to the rules of writing toki pona in latin characters

Ideally, to be used with JS Array join and String replace methods, like so: process.argv.join(' ').replace(/["']/g, '').match(/(?<=--path[ |=])dist\/.*(?=$)/); The join is to convert array to string to prevent iterating. The replace is to remove single or double quotes for easier matching....

This Regex parses out the LastName, FirstName, MiddleName(s) (optional) and Suffix (optional). The String must have at least two words separated by a comma to match.

A Regular Expression for the result of a Wordle, that can be shared after completing the Wordle of the Day.

Match a semantic version string, but numbers only (e.g. 1.2.3). Ignore things like dev, patch, src, etc.

guif

This raged parses out the Title (optional) Firstname Middlename(s) (optional) Lastname (optional) and Suffix (optional)

using this library, you can search for substrings of the type in a string: @delete [user_name]

looking for lines like: *@block user

Matches on escape sequences only. \b Backspace \f Form Feed \n New Line \r Carriage Return \t Horizontal Tabulator...

match like aa bb cc dd ee ff 00 aa 13 0 1 2 3 aa

This pattern checks for the format according to the International ISBN Agency standard e.g. '978-3-16-148410-0'. Source: https://www.oreilly.com/library/view/regular-expressions-cookbook/9781449327453/ch04s13.html. NOTE: it does not validate if it is an actual ISBN number. It only validates the fo...

This captures everything from the start until the first hashtag.

be at least 8 characters with at least 1 Capital , 1 Lowercase , 1 special char , 1 number

oq?