Ruby Regex to extract domain from email address
I have no real previous experience using regex, just saying. I want to extract domain names from email addresses with the below format.
richardc@mydomain.com so that the regex returns just: mydomain
With an explanation of how/why it works if possible! Cheers
Here capturing (...) the domain name in group 1 and replace the whole string with that capture, which yields the domain name only at the end.
email = 'richardc@mydomain.com'
domain = email.gsub(/.+@([^.]+).+/, '1')
# => mydomain
.+ means any character(except n ). So its basically matching the whole email string, and capturing the domain name using ([^.]+) [means anything but dot]
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