Email validation in Javascript

Email validation in Javascript based on pattern expression

Code:

<html>  
<title>email validation</title>  
    <script language="JavaScript" type="text/javascript">  
    // Validate Email .
    function validateEmail(email){  
 
    var reg = /^([A-Za-z0-9_-.])+@([A-Za-z0-9_-.])+.([A-Za-z]{2,4})$/;
      if (reg.test(email)) {   
       document.getElementById("errorDiv").innerHTML = "This email is valid.";
      }else{  
       document.getElementById("errorDiv").innerHTML = "This email is not valid.";
      }  
    }  
    </script>  
    <table>
    <tr><td>
    <input type="text" id="email" name="email"  />   
    <input type="button" onclick="validateEmail(email.value);" value="check Email" /><br/>
    <div id="errorDiv"/>  

     </td>    
    </tr>
    </table>
</html>
    

_________________
M. S. Rakha, Ph.D.
Queen's University
Canada

Author: DrRakha
Mastermind

Posts: 2715
Have thanks: 74 time

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