Build, test, and debug regular expressions
A loose pattern intended to match Gmail email addresses in JavaScript with global flag. It requires a sequence of at least 5 word characters followed by the literal '@gmail.com', while optionally allowing word characters, '@' symbols, lowercase letters, and periods before that. Due to the many optional quantifiers (*), it may also match malformed or partial email strings rather than strictly valid ones. Commonly used for extracting Gmail addresses from text.