Email regex compatible with both Ruby and Javascript

Question

I use a regex in a model and I use the Judge gem to perform the client side validation, because the judge based its client side validation on the models, it uses the user email regex in both Ruby and javascript.

The problem is that the regex is not javascript compatible, I guess. So I need to find a regex that is compatible with both Ruby and Javascript, for email validation. (But also for mobile, etc...)

Is there any tool, website or whatever to help me change all my regex?

/\A\s*(([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})[\s\/,;]*)+\Z/i

Robin · Accepted Answer · 2014-04-30 09:18:49Z

3

Your issue here is that javascript doesn't now the \A\Z anchors.

If you're not using the m flag (multiline), you can replace then with ^$:

/^\s*(([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})[\s\/,;]*)+$/i

For reference, ^$ are anchors matching the beginning and end of the string, except if you use the m flag: then they match the beginning and end of a line.

\A\Z always match beginning and end of the string.

edited Apr 30, 2014 at 9:18

answered Apr 30, 2014 at 9:10

Robin

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2 Comments

Vadorequest Over a year ago

Does they mean start and end?

Robin Over a year ago

@Vadorequest: Answer edited, you can also look here for more info if you like: regular-expressions.info/anchors.html

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