Javascript Email Validation Error (Works in ASP.Net not in ASP.Net MVC)

Question

I am using javascript to validate email but its giving Parsing error in regex

var regex = new RegExp('^[a-z0-9]+([_|\.|-]{1}[a-z0-9]+)*@[a-z0-9]+([_|\.|-]{1}[a-z0-9]+)*[\.]{1}(com|ca|net|org|fr|us|qc.ca|gouv.qc.ca)$', 'i');

Parser Error Message: "[" is not valid at the start of a code block. Only identifiers, keywords, comments, "(" and "{" are valid.

Thanks

Why don't you try this way [Validate email address in JavaScript?](http://stackoverflow.com/questions/46155/validate-email-address-in-javascript) — Harish Talanki, Jan 23 '14 at 11:11
@HarishTalanki This SO answer is the generic way... may not be suited for OP's business rules. — Stephan, Jan 23 '14 at 11:13

Stephan · Answer 1 · 2014-01-23T11:11:23.100

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Your regex should look like this:

^[a-z0-9]+([_.-][a-z0-9]+)*@[a-z0-9]+([_.-][a-z0-9]+)*\.(com|ca|net|org|fr|us|qc.ca|gouv.qc.ca)$

Demo

http://regex101.com/r/xK3cL4

edited Jan 23 '14 at 11:11

answered Jan 23 '14 at 11:04

Stephan

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@Imad Try to esacpe the `@` character: `\@` – Stephan Jan 23 '14 at 11:12
Can you try same in your PC? – SMI Jan 23 '14 at 11:17
Its working in my colleague's system as well, what could be the problem? Believe me I am not harrasing anyone. – SMI Jan 23 '14 at 11:20
Is it due to I am using MVC – SMI Jan 23 '14 at 11:22
@Imad I don't know. Compare your configuration with your colleague's one. – Stephan Jan 23 '14 at 11:31

score 0 · Answer 2 · answered Jan 23 '14 at 11:31

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This regex is perfect and works fine for me.. try this.

/^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\""))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/

answered Jan 23 '14 at 11:31

Vignesh

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doesn't matter what regex I am using, there is always error after @ symbol. – SMI Jan 23 '14 at 11:34

score 0 · Accepted Answer · answered Jan 23 '14 at 11:42

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It needed little bit googling. I was thinking MVC and NTire ASP.Net application need same Regular Expression, it was not the case, just replaced @ with @@ and it worked. :) thank for your time @Alex :)

answered Jan 23 '14 at 11:42

SMI

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score -3 · Answer 4 · edited Mar 05 '15 at 14:47

Can you provide more of the file containing this? If it is being processed through an engine that uses the @ tag to mark code (like Razor) it may be that this regex is causing a parse error on the server before the JavaScript is send to the client.

Razor already has @ tag, and if you need to embed @ characters (even in JavaScript regexes) that are passed to the server, you'd need to escape them using @@ instead of @, i.e., doubling them:

/^(([^<>()[\]\\.,;:\s@@\"]+(\.[^<>()[\]\\.,;:\s@@\"]+)*)|(\".+\""))@@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/

Javascript Email Validation Error (Works in ASP.Net not in ASP.Net MVC)

4 Answers4

Demo