function onReady() {
    var address = $('#address');
   /* 
    address.on('change', function() {});
    */
    var email_id = $('#email_id');
   var phone_no = $('#phone_no');
   var whatsapp_no = $('#whatsapp_no');
   
}

function beforeSave() {
    data_post.push({
        name : '_example',
        value : 'value_of_example',
    })
}