Are you tired of receiving spam emails on your inbox? Do you want to ensure
that the emails you receive are legitimate and not just some junk mail? If so,
then you need to implement email validation on your website. And one of the
best ways to do this is by using a pattern for email validation.

What is a pattern for email validation?

email-validation

A pattern for email validation is a regular expression that checks whether an
email address is valid or not. Regular expressions are a sequence of
characters that define a search pattern. They are used to match and validate
text. In the case of email validation, regular expressions are used to check
whether an email address follows a specific format or not.

Why is email validation important?

Email validation is important for several reasons. First, it helps to ensure
that the email addresses collected on your website are legitimate. This can
help to reduce the number of spam emails that you receive. Second, it helps to
prevent errors when sending emails. If an email address is invalid, then the
email will not be delivered. This can lead to frustration for both you and
your customers. Third, it helps to ensure that your emails are delivered to
the right person. If an email address is misspelled, then the email may be
delivered to the wrong person.

How does a pattern for email validation work?

email-validation
A pattern for email validation works by checking whether an email address
follows a specific format. The format that is checked depends on the regular
expression that is used. For example, the following regular expression checks
whether an email address follows the format username@domain.com:

/^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/

Let's break this down:

  • ^ - matches the start of the string
  • [a-zA-Z0-9._%+-]+ - matches one or more characters that are letters, digits, dots, underscores, percent signs, plus signs, or hyphens
  • @ - matches the @ symbol
  • [a-zA-Z0-9.-]+ - matches one or more characters that are letters, digits, dots, or hyphens
  • \. - matches a period
  • [a-zA-Z]{2,} - matches two or more characters that are letters
  • $ - matches the end of the string

So, if an email address matches this regular expression, then it is considered
valid.

How to implement a pattern for email validation?

email-validation
Implementing a pattern for email validation is relatively easy. You just need
to add the pattern attribute to your email input field. For example:

<input type="email" name="email" pattern="/^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/" required>

The type="email" attribute tells the browser that this is an email input
field. The name="email" attribute gives the field a name. The pattern
attribute is where you add the regular expression for email validation. The
required attribute makes the field mandatory.

Conclusion

Email validation is an important aspect of website development. It helps to
ensure that the emails you receive are legitimate and that your emails are
delivered to the right person. A pattern for email validation is an effective
way to check whether an email address is valid or not. By implementing a
pattern for email validation, you can help to reduce the number of spam emails
you receive and prevent errors when sending emails.