CODEWITHSUNDEEP
regexhtml
Mayank
Mayank

Reputation: 954

restrict specific domain to enter in my email field using pattern

I would like to restrict specific domain to enter in my email form field using pattern.

<input type='email' name='email' pattern='' required/>

i want to restrict "mydomain.com" not just .com/.org/.in, to enter in my email field.

How i can do that using reg expression?

I know how i can allow specific domain using reg. but reverse is not working for me. sorry i m not good with reg expression

Thanks in advance

Upvotes: 0

Views: 2040

Answers (1)

Walls
Walls

Reputation: 4010

You can use negative look aheads to handle validating against a string that is NOT followed by another string.

If you want to allow something.com but not something.org you can use \w*\.(?!org). This will match your something., but will fail when it is followed by org. To add more cases to this, you can add extra negative look aheads in as needed IE: \w*\.(?!com)(?!org)(?!net).

I did some testing using some examples here.

Upvotes: 1

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