Question

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Validate email address in Javascript?

I have an HTML form that uses PHP/MySQL to post to a database. In the email section of the form, I want the user to be displayed an error message if he or she types in an email address that is not in valid email address format. I am modeling off of a code like this, but I cannot get it work.

Note that whenever I hit the submit button on the form, the form submits, and the PHP action works fine. The problem is I can enter anything I like in the form and it will pass fine. I would like for it to display the error message “Not a valid email address”. I understand I can validate via PHP too, but I would like to validate on the client side as well.

Can anyone assist?

    <script type="text/javascript">
function validateEmail()
{
var x=document.forms["test"]["email"].value;
var atpos=x.indexOf("@");
var dotpos=x.lastIndexOf(".");
if (atpos<1 || dotpos<atpos+2 || dotpos+2>=x.length)
 {
alert("Not a valid e-mail address");
return false;
 }
 }
  </script>


  <form name"test" action="roads.php" onsubmit="return validateEmail();" method="post">

  <input type="text" name="email" placeholder="Enter your e-mail" />

   <input type="submit" value="Show Me!" />

   </form>

Answer 1

you are missing a = in html, which doesn’t make to form name test..and javascript can’t find the form of name test, and throws error…check console log for javascript errors..

<form name"test" action="roads.php" onsubmit="return validateEmail();" method="post">

<form name="test" action="roads.php" onsubmit="return validateEmail();" method="post">

Working code