validate mail id using javascript [Resolved]

Posted by Shreedar under JavaScript on 9/28/2015 | Points: 10 | Views : 1895 | Status : [Member] | Replies : 7

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For name and password I implemented in javascript
<script language="javascript" type="text/javascript">
function ValidateForm() {
var name = document.getElementById("TextBox1").value;
var pwd = document.getElementById("TextBox2").value;
var email=document.getelementById("TextBox3").value;
if (name == "" && pwd == "") {
alert("Username and Password are Necessory!, Please enter and try again.");
}
I want to check valid email id.

Regards

Sridhar Thota.
www.dotnet-sridhar.blogspot.com

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Posted by: Sheonarayan on: 9/28/2015 [Administrator] HonoraryPlatinum | Points: 50

4	Use below function and pass the email text box value. If this function returns true, the email id entered is valid otherwise invalid. function ValidateEmail(mail) { var re = /^([\w-]+(?:\.[\w-]+))@((?:[\w-]+\.)\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i; return re.test(mail); } See the live demo here http://techfunda.com/Howto/javascript/781/email-validation . Regards, Sheo Narayan http://www.dotnetfunda.com Shreedar, if this helps please login to Mark As Answer. \| Alert Moderator

Use below function and pass the email text box value. If this function returns true, the email id entered is valid otherwise invalid.

function ValidateEmail(mail) {
    var re = /^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
    return re.test(mail);
}

See the live demo here http://techfunda.com/Howto/javascript/781/email-validation .

Regards,
Sheo Narayan
http://www.dotnetfunda.com

Shreedar, if this helps please login to Mark As Answer. | Alert Moderator

Posted by: Rajnilari2015 on: 9/28/2015 [Member] [Microsoft_MVP] [MVP] Platinum | Points: 50

2	Try this <html> <head> <script> function ValidateForm() { var name = document.getElementById("TextBox1").value; var pwd = document.getElementById("TextBox2").value; var email=document.getElementById("TextBox3").value; if (name == "" && pwd == "") { alert("Username and Password are Necessory!, Please enter and try again."); } var re = /^([\w-]+(?:\.[\w-]+))@((?:[\w-]+\.)\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i; if(!re.test(email)){ alert("Invalid Email"); } } </script> </head> <body> Name:<input type="text" id="TextBox1" /><br/> Password:<input type="text" id="TextBox2" /><br/> Email:<input type="text" id="TextBox3" /><br/> <input type="button" id="btnCheck" value="Check" onClick="ValidateForm()"/> </body> </html> The regular expression */^([\w-]+(?:\.[\w-]+))@((?:[\w-]+\.)\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;* -- Thanks & Regards, RNA Team Shreedar, if this helps please login to Mark As Answer. \| Alert Moderator

Try this

<html>
	<head>
		<script> 
			function ValidateForm() { 
			
			var name = document.getElementById("TextBox1").value; 
			var pwd = document.getElementById("TextBox2").value; 
			var email=document.getElementById("TextBox3").value; 
			if (name == "" && pwd == "") { 
				alert("Username and Password are Necessory!, Please enter and try again."); 
			} 

			var re = /^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
			if(!re.test(email)){
				alert("Invalid Email"); 
			}			
		}
		</script>
	</head>
	<body>
		Name:<input type="text" id="TextBox1" /><br/>
		Password:<input type="text" id="TextBox2" /><br/>
		Email:<input type="text" id="TextBox3" /><br/>
		<input type="button" id="btnCheck" value="Check" onClick="ValidateForm()"/>
	</body>
</html>

The regular expression
/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;

--
Thanks & Regards,
RNA Team

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Posted by: Rajnilari2015 on: 9/28/2015 [Member] [Microsoft_MVP] [MVP] Platinum | Points: 25

3	you can check this link too http://www.regular-expressions.info/email.html for RFC 2822 complaint regex. The official site for RFC 2822 is https://tools.ietf.org/html/rfc2822#section-3.4.1 -- Thanks & Regards, RNA Team Shreedar, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Shreedar on: 9/28/2015 [Member] Starter | Points: 25

1	Sheo sir. Rajnilari is giving good responses I agree. But not faster than you. Mr.Raj its a great thing to get compliment from Sheo sir. Regards Sridhar Thota. www.dotnet-sridhar.blogspot.com Shreedar, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Rajnilari2015 on: 9/28/2015 [Member] [Microsoft_MVP] [MVP] Platinum | Points: 25

1	How can I be faster than my GURU? (: -- Thanks & Regards, RNA Team Shreedar, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Sheonarayan on: 9/28/2015 [Administrator] HonoraryPlatinum | Points: 25

0	Good job Rajnilari, you were faster than me! Regards, Sheo Narayan http://www.dotnetfunda.com Shreedar, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Shreedar on: 9/28/2015 [Member] Starter | Points: 25

0	Raj well said :) Regards Sridhar Thota. www.dotnet-sridhar.blogspot.com Shreedar, if this helps please login to Mark As Answer. \| Alert Moderator

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