Build, test, and debug regular expressions
Matches standard email addresses by looking for a local part containing alphanumeric characters, dots, underscores, plus, and hyphens, followed by an '@' symbol and a domain with alphanumeric characters, hyphens, and dots. This pattern is useful for validating user input in forms, ensuring basic email formatting before submission to a backend service. Note that it allows multiple dots or consecutive special characters in the local part and domain, which might not be strictly RFC-compliant but works well for general web form validation.