I'm trying to validate the local name portion of an email address. The domain name gets pre-populate so I don't have to worry about that part. Is there a regex expression that I can use to do this?
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You need to validate everything before the `@`? What should be valid/invalid? Emailaddress syntactically correct? Or maybe containing more than x characters? Or having `imaguy` in the pre-`@`part? – Highmastdon Feb 02 '15 at 15:54
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1What do you mean by `validate the local name`? – Toto Feb 02 '15 at 15:55
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Hi, by local name I mean validate everything before the @ sign. – davidst95 Feb 02 '15 at 19:45
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There are so many answers about this regex. Anyways the following regex might help you
1) Validates whole email id (Ex : firstname.12@gmail.com)
/^[a-z.]+[a-z0-9._%+-]*@[a-z]+[a-z0-9.-]*\.[a-z]{2,4}$/
2) Validates everything except email domain (Ex: firstname.12@)
/^[a-z.]+[a-z0-9._%+-]*@$/
3) Validates everything except '@< domain name >' (Ex: firstname.12)
/^[a-z.]+[a-z0-9._%+-]*$/
Check out the plunker for few other regular expressions also.
Rajeshwar
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