JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" id="input1" name="input1" class="myInput" value="this is not empty"><br>
<input type="text" id="input2" name="input2" class="myInput" value=""><br>
<select id="input3" name="input3" class="myInput">
      <option value="">(Select something)</option>
      <option value="is not empty">this is not empty</option>
</select><br><br>
<input type="button" id="submitMe" value="submit">

JavaScript

$('#submitMe').click(function(){  
    var params = {};

        $('.myInput').each(function() {
          var value = $.trim($(this).val());
          if(value.length>0)
          {
              alert($(this).attr('name'));
              // params[$(this).attr('name')] = value;
          }
          
          // Maybe pass params to an ajax call?
          /*
          $.ajax({
              type: "POST",
              url: "your-url-here.com",
              data: params,
              success: success,
              dataType: dataType
          });
          */
   });

});