JavaScript Program to Check Whether Given Email is Valid or not Using Regular Expression
Write a JavaScript program to check whether given email is valid or not using Regular Expression.
Source Code
<html>
<head>
<title>Check for valid Email</title>
<script>
function validateEmail()
{
var email = document.getElementById("email_id").value;
if(email.indexOf('@') == -1 || email.indexOf('.') == -1)
alert("Invalid email. Plz enter valid email");
else
alert("Valid email");
}
</script>
</head>
<body>
<input type="text" id="email_id" /><br/>
<input type="button" value="Validate Email" onclick="validateEmail();"/>
</body>
</html>
Output
