Validating email in javascript using regular expression

Posted by / 30-Aug-2020 11:35

Validating email in javascript using regular expression

It is a very simple function which uses a regular expression pattern match to test if a email is of a correct format. This takes in a parameter of the email address and then runs a pattern match against the regular expression.If it doesn't find any matches then it will fail the validation and the function will return false, if the match returns true then the email will be of a correct format and the function will return true.The whole purpose of the Javascript email validation should be to check for any unintentional error (like entering name instead of email). With the vast amount of complex, but valid email addresses that exist today, the only way to truly tell if an email address is valid is to send the email and see if it bounces.Java script can check the regular expression pattern for valid email address.We have different regular expression patterns for validating email address.

The follow snippet is a function I use to validate email addresses.

We can validate email address at client side and server side.

To validate email address on client side, we can use java script with regular expression.

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