Domain Name Validation In Javascript. - domain names should have only alpha numeric values and - - domain names should not beginend with -. Delphi queries related to javascript check valid domain name gmail regular expression email validation javascript.
Standard condition of email validation. Firstly lets have a look how a user can make mistake while entering wrong email address. The best way is to validate the combinations of such string is using Regular expression.
If the domain name has been URL-encoded for example validation will fail even though the equivalent plaintext version of the same name would have passed.
So if a user enters an invalid email address the browser will quickly notify himher. No accommodation is provided for the specialized needs of other applications. JavaScript Form Validation Example. Most of the web developers prefer JavaScript form validation.