Q:

multiple attribute selector on drop down menu?

I have a drop down menu with multiple selections. Each has an option value. When three of these are selected, I'm supposed to have some text show up to the right of the box. So far, so good. 
My problem is selecting ONLY those three to display text and the rest to display nothing. The problem is I can get two of them to work by using the !== 'value1' && 'value2', but I have no idea the best way to select only these three. 
Here is my code:
HTML
<select id="award-type">
     <option value="">choose one</option>
     <option value="award1">Award 1</option>
     <option value="award2">Award 2</option>
     <option value="award3">Award 3</option>
     <option value="award4">Award 4</option>
     <option value="award5">Award 5</option>
     <option value="award6">Award 6</option>
</select>
  <div class="award-text"></div>

and the JS:
function dropDownSelect() {
    $('#award-type').on('change', function (e) {

        var selectValue = $(this).val();

        if (selectValue == 'award1') {
            $('.award-text').show().text("you won award 1");
        }
        if (selectValue == 'award2') {
            $('.award-text').show().text("you won award 2");
        }

        if (selectValue == 'award3') {
            $('.award-text').show().text("you won award 3");
        }
        else if (selectValue !== 'award1' && 'award2' && 'award3') {
            $('.award-text').show().text(" ");
        }

    });
}

Any ideas would be greatly appreciated!

A:

Firstly this condition is not a proper syntax 
selectValue !== 'award1' && 'award2' && 'award3'

supposed to be 
selectValue !== 'award1' && selectValue !== 'award2' && selectValue !== 'award3'

Second why don't you write a simple elseif instead of multiple if statements
function dropDownSelect() {
    $('#award-type').on('change', function (e) {

        var selectValue = $(this).val(),
            $text = $('.award-text'); // cache selector
        if (selectValue == 'award1') {
            $text.show().text("you won award 1");
        } else if (selectValue == 'award2') {
            $text.show().text("you won award 2");
        } else if (selectValue == 'award3') {
            $text.show().text("you won award 3");
        } else {
            $text.hide();
        }
    });
}

$('#award-type').on('change', dropDownSelect).change();

Working Fiddle

