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  Dec 14 2014 8:31AM     Anand
  1 Comments    2041 Views  
Here John discussed about Email Validation in Javascript.
Java Script is dynamic and most commonly used in all programming languages.
This validation is verifying that the supplied email address is in correct format.
JavaScript

<script type="text/javascript">

        function validateEmail() {

            var email = document.getElementById('txtEmail');
            var mailFormat = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
            var errorMsg = document.getElementById("errorMsg");
            var successMsg = document.getElementById("successMsg");

            if (email.value == "") {
                errorMsg.style.display = "block";
                document.getElementById("errorMsg").innerHTML = "  Please enter your Email Id  ";
            }
            else if (!mailFormat.test(email.value)) {
                errorMsg.style.display = "block";
                document.getElementById("errorMsg").innerHTML = "  Email Address is not valid, Please provide a valid Email ";
                email.focus;
                return false;
            }
            else {
                successMsg.style.display = "block";
                document.getElementById("successMsg").innerHTML = " Success ";
                errorMsg.style.display = "none";
            }
            
        }
    </script>

Html

<body>
    <form id="form1" runat="server">
    <div class="algContent">
        Email Validation In JavaScript
    </div>
    <br >
    <br >
    <br >
    <div class="algContent">
        <div style="float:left;">
            <span>Enter the Email:</span> <span>
                <input id="txtEmail" type="text" />
            </span>
        </div>
        <div style="float:left;">
        <span style="float:left;" id="errorMsg" class="dsNone error"></span><span style="float:left;" id="successMsg" class="dsNone success">
        </span>
        </div>
        <br ><br >
        <input type="button" value="Submit" onclick="validateEmail();">
    </div>
    </form>
</body>

CSS

<style type="text/css">
    .error
    {
        color: white;
        background-color: rgb(247, 23, 23);
        margin-left: 12px;
        border-radius: 3px;
    }

    .dsNone
    {
        display:none;
    }

    .success
    {
        color: white;
        background-color: green;
        margin-left: 12px;
        border-radius: 3px;
    }

    .algContent
    {
        width:900px; margin:0 auto;
    }

    </style>

Demo
Enter the Email:


I hope this page will helps you to validate any kind of forms using Javascript.Thanks.
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Comments


AnonymousUser
Mar 21 2016 10:54AM
why error msg is blim and go

 
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