I would like to explain about email id validation using java script
<script type="text/javascript">
function checkEmail() {
//here the function called the submit button.
var email = document.getElementById('txtEmail');
var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
//here we will assign the validation for email address
if (!filter.test(email.value)) {
alert('Please provide a valid email address');
//alert message show weather the email is valid or not
email.focus;
return false;
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<input type='text' id='txtEmail'/>
<input type='submit' name='submit' onclick='checkEmail();'/>
</div>
</form>
</body>
i hope you understand this email validation using java script.
code in .aspx page:
<head runat="server">
<title>java script validation for Email Id</title><script type="text/javascript">
function checkEmail() {
//here the function called the submit button.
var email = document.getElementById('txtEmail');
var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
//here we will assign the validation for email address
if (!filter.test(email.value)) {
alert('Please provide a valid email address');
//alert message show weather the email is valid or not
email.focus;
return false;
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<input type='text' id='txtEmail'/>
<input type='submit' name='submit' onclick='checkEmail();'/>
</div>
</form>
</body>
i hope you understand this email validation using java script.
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