Jquery evaluating 2 time fields

Question

I have a form which contains two dropdown lists, From time and To time. Both lists display the hours in 24 hour format but the hour values are are plain numbers without any leading zeros.

When I try to evaluate and make sure the user is selecting a "To" hour that it is greater than the "From" hour I keep getting the alert that "From" hour" must be less than the "to" hour.

Can anyone see where I have gone wrong with my evaluation script.

function getvalHT(sel) {
    var selectedFromHours   = $('#RoomFromTimeH').val();
    var selectedToHours     = $('#RoomToTimeH').val();

    console.log(selectedFromHours);
    console.log(selectedToHours);

    var selectedFromMin     = $('#RoomFromTimeM').val();
    var selectedToMin       = $('#RoomToTimeM').val();

    if(selectedFromHours > selectedToHours) {
        $("#savebutton").show(); 
    }else {
        $.alert({
            title: 'Time period error!',
            content: 'The "From" hours time of ' + $('#RoomFromTimeH').val() + '<BR/><BR/> must be less than<BR/><BR/> the "To" hours time of ' + $('#RoomToTimeH').val() + '.',
            icon: 'fa fa-rocket',
            animation: 'zoom',
            boxWidth: '50%',
            closeAnimation: 'zoom',
            buttons: {
             okay: {
                text: 'Try again',
                btnClass: 'btn-blue'
             }
            },

                cancel: function () {
                 $.alert('canceled');
            }
       });
        $("#savebutton").hide();  // any other condition hide the button
        $('#RoomFromTimeH').prop('selectedIndex',0);
        $('#RoomToTimeH').prop('selectedIndex',0);
        $('#RoomFromTimeM').prop('selectedIndex',0);
        $('#RoomToTimeM').prop('selectedIndex',0);
    }
}

Many thanks in advance for your time.

Answer 1

It's working just fine for me! See example below.

And may I just add to this that it might be more userfriendly to just disable the hours in the second select that are lower than the value selected in the first select? This will prevent annoying popup errors for your end users.

$('.selectTime').change(function() {

  var selectedFromHours = $('#RoomFromTimeH').val();
  var selectedToHours = $('#RoomToTimeH').val();

  console.log(selectedFromHours);
  console.log(selectedToHours);

  var selectedFromMin = $('#RoomFromTimeM').val();
  var selectedToMin = $('#RoomToTimeM').val();

  if (selectedFromHours < selectedToHours) {

    $("#savebutton").show();

  } else {

    $.alert({
      title: 'Time period error!',
      content: 'The "From" hours time of ' + $('#RoomFromTimeH').val() + '<BR/><BR/> must be less than<BR/><BR/> the "To" hours time of ' + $('#RoomToTimeH').val() + '.',
      icon: 'fa fa-rocket',
      animation: 'zoom',
      boxWidth: '50%',
      closeAnimation: 'zoom',
      buttons: {
        okay: {
          text: 'Try again',
          btnClass: 'btn-blue'
        }
      },

      cancel: function() {
        $.alert('canceled');
      }
    });

    $("#savebutton").hide(); // any other condition hide the button
    $('#RoomFromTimeH').prop('selectedIndex', 0);
    $('#RoomToTimeH').prop('selectedIndex', 0);
    $('#RoomFromTimeM').prop('selectedIndex', 0);
    $('#RoomToTimeM').prop('selectedIndex', 0);
  }

});

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<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-confirm/3.1.1/jquery-confirm.min.js"></script>

<select id="RoomFromTimeH" class="selectTime">
  <option value="1">01</option>
  <option value="2">02</option>
  <option value="3">03</option>
</select>
<select id="RoomToTimeH" class="selectTime">
  <option value="1">01</option>
  <option value="2">02</option>
  <option value="3">03</option>
</select>

<button id="savebutton" style="display:none;">Save</button>