Sending ajax with dynamic key name

ajax_dyn_key

$(document).ready(function() {
  function ajax_save(field, value)
  {
      $.ajax({
          type: 'POST',
          url: '{{ URL::to('/test') }}',
          data: field + '=' + value
      }).done(function(data) {
          console.log('Response: ' + data);
      }).fail(function(data) {
          console.log('Failed: ' + data);
      });
  }
  
  $('#input_1').blur(function() {
      ajax_save('input_1', $('#input_1').val());
  });
});