Regex to check if a string is a discord mention

i.e: (555)555-5555 (OK) 5555555555 (ok) 555.555.5555 (ok) 55555555556 (ok) +184 (555)555-5555 (ok)...

Log: Bluecoat Event Type: Upstream Ref to Json: "Sources/Bluecoat/ipv4-2

Valid format YYYY-MM-DD

Find emoji's in strings.

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. 1) The only numbers in the username have to be at...

This is regex for website url matching scheme,host,port,path and query. I did it because in c#, class Uri does not understand urls without scheme and says that 'google.com' is invalid url.

Pipe tables format for R Markdown

Regex for date in ISO 8601 format that also check the number of day in a month to be sure the date is valid

Extract brazilian DDD and phone number

vyhledani netisknutelnych znaku .rlike("[\\x00-\\x1F\\x7F]")