Angular 6 email regex

Question

I want to validate all email inputs on my app with regex. But there is a problem, all the regex I have found allow emails with no TLD. I want a regex that can help me reject emails such as testing@testing,

Examples:

testing@testing.com should be valid
testing@testing.co.us should be valid
testing@testing should not be valid

The current regex I use is : ^([a-zA-Z0-9_-.]+)@(([[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.)|(([a-zA-Z0-9-]+.)+))([a-zA-Z]{2,4}|[0-9]{1,3})$

But it accepts testing@testing for example, and that is not what I want. How would I go about validating emails and rejecting ones without TLD

Check this solution: https://stackoverflow.com/questions/46155/how-to-validate-an-email-address-in-javascript — Torben Schramme, Dec 04 '18 at 10:44
Please, have a look at these sites: TLD list: https://www.iana.org/domains/root/db ; valid/invalid addresses: https://en.wikipedia.org/wiki/Email_address#Examples ; regex for RFC822 email address: http://www.ex-parrot.com/~pdw/Mail-RFC822-Address.html https://en.wikipedia.org/wiki/List_of_Internet_top-level_domains — Toto, Dec 04 '18 at 11:00

Sachin Jagtap · Accepted Answer · 2018-12-04T15:06:30.410

15

This is the regex which does what you want:

[A-Za-z0-9._%-]+@[A-Za-z0-9._%-]+\\.[a-z]{2,3}

edited Dec 04 '18 at 15:06

answered Dec 04 '18 at 10:49

Sachin Jagtap

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If you think this is a duplicate question, mark it as such and don't copy answer. – Toto Dec 04 '18 at 10:58
I have tried this in my Angular app and it fails to match any emails – Node_Ninja Dec 04 '18 at 11:47
Please create a stackblitz as I think the problem is not with the regex. – Sachin Jagtap Dec 04 '18 at 12:04
Please find the code here: https://stackblitz.com/edit/angular-edgene – Node_Ninja Dec 04 '18 at 12:33
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Hi. I edited my earlier answer, now the regex will work. – Sachin Jagtap Dec 04 '18 at 15:07
I tried it and it works. What was the issue with the initial regex? – Node_Ninja Dec 04 '18 at 18:39
That regex was working on what are not allowed and this works on what is allowed. Actually Validation.pattern works internally I don't know so can't comment on that, but in normal circumstances that regex would have worked. – Sachin Jagtap Dec 05 '18 at 09:27
what about a regex for multiple emails? – Alejandro Nov 06 '20 at 03:35
By multiple emails, you mean inserting multiple emails in a single string. Can you please clarify. – Sachin Jagtap Nov 06 '20 at 12:52

Angular 6 email regex

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