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JavaScript Email Validation Example

Validating email is a very important point while validating an HTML form. In this page we have discussed how to validate an email using JavaScript :

There must be at least one character before and after the @.


function validateemail()


var x=document.myform.email.value;

var ata=x.indexOf("@");

var dotb=x.lastIndexOf(".");

if (ata<1 || dotb<ata+2 || dotb+2>=x.length){

alert("Please enter a valid e-mail address \n ata:"+ata+"\n dotb:"+dotb);

return false;




<form name="myform" method="post" action="#" onsubmit="return validateemail();">

Email: <input type="text" name="email"><br/>

<input type="submit" value="register">




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