Introduction:
In my previous article I
have explained about How to Valiate radio button using
javascript. In this article I am going to explain about code used to
validate emailed
using Javascript.
Explanation:
For explanation purpose I have a text input and a button in the form.
If you enter the emailid and click the validate button then it will check whether
it is a valid email id or not. If it is valid email id then it will show the
alert msg as Valid Emailid else it will show alert msg as Invalid Emailid.
Below is the javascript function to
validate email id. It gets the textbox id as input.
function fnCheckEmail(id) {
var
emailid = document.getElementById(id).value;
var
emailfilter = /^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,4}|\d+)$$/i
if
(emailfilter.test(emailid)) {
alert(emailid+' is a Valid EmailId..');
}
else
{
alert(emailid + ' is a InValid EmailId..');
}
}
Here is the demo..
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Enter the email id
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