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How to perform email validation through Javascript:

Posted By:Athira Sreejith       Posted Date: December 31, 2008    Points: 10    Category: Javascript    URL: http://www.dotnetspark.com  
 

below is the function to Check email validation using Javascript. This function uses regular expression to do validation

function validateEmail(email)
{
    var emailpat=/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$/;
    var matchArray=email.match(emailpat);
    if(matchArray==null)
     {
        return false;
     }
    return true;
}

Checking:


if(document.getElementById("txtYourmailId").value!="")
{
if(!validateEmail(document.getElementById("txtYourmailId").value))
{
alert("Invalid Email Address");
document.frmpostresume.txtYourmailId.focus();
return false;
}
}

     

Further Readings:

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