how to check username and email already exist except for one particular id in database using jquery

I want to check whether the username and email is already exist in edit page.. So need to check it except for that particular if.. How is it possible using jquery validator..

I have tried with following format :

Jquery :

<script>
    $(document).ready(function(){         
        $("#frmForm").validate({
            rules: {                
                empemail: {
                           required: true,
                           remote: "../admin/checkEmail.php?data=email"
                },
                username: {
                           required: true,
                           remote: "../admin/checkEmail.php?data=name"
                },              
            },
            messages: {             
                username: {
                               required:"*",
                               remote: "already exists"
                            },
                empemail: {
                               required:"*",
                               remote: "already exists"
                            },              
                }
        });   
    });
</script>

HTML page

<form  method="post" action="updateEmp.php" id="frmForm">
    <label >Email </label>
    <input type="email" name="empemail" value="<?php echo $row['email'] ?>">    
    <label >Username</label>
    <input type="text" name="username" value="<?php echo $row['username'] ?>">                          
    <button class="btn btn-primary btn-sm" type="submit" >Update</button>
</form>