Test, validate and match regular expressions
This regex validates email addresses by checking the local part (before @) allows alphanumeric characters, hyphens, underscores, plus signs, and periods. It requires a domain name with at least 2 alphanumeric characters, followed by a TLD of at least 2 lowercase letters, with an optional additional domain segment (like .co.uk). It's useful for basic email validation in forms or data processing.