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Old June 5th, 2003, 07:39 AM
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Default Email Validate

How to validate given email in javascript?

Thanks,
Kannan
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Old June 6th, 2003, 02:36 AM
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Default

that depends on what kind of stuff you want to check in email. good start is detecting "@" and "." characters and also empty space " ". here's how you can do it:

function checkEmail(email) {
     if(email.indexOf("@")!=-1 && email.indexOf(".")!=-1 && email.indexOf(" ")!=-1) {
     alert("Specified email address is invalid");
     return false; }
     else alert("Good email address");
}

that should do it

the genuine genius
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Old June 9th, 2003, 08:33 AM
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If you really want to validate an email address, you might want to use a regular expression. See http://regexlib.com/ for examples of some regular expressions that validate email addresses.



-Van
(Old dog learning new tricks...)
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Old July 3rd, 2003, 11:46 PM
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Default

Here is my favorite method: (Caution: won't work if scripting is disabled!)

<html>

<head>
<title>Email Check</title>
</head>

<script language="JavaScript"><!--
function Form_Validator(theForm) {
    var regex = /^[\w\.-]+@[\w\.-]+\.[a-zA-Z]{2,3}$/
    if (!regex.test(theForm.Email.value)) {
        alert("Invalid email address.");
        theForm.Email.focus();
        return (false);
    }
    return (true);
}
//-->
</script>

<body>
  <form method="POST" onsubmit="return Form_Validator(this)" action="javascript:alert('Email is valid')">
    <input name="Email" value="">
    <input type="submit" value="Validate Email">
  </form>
</body>

</html>

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