value of selected option in select menu

desc

HTML

<select id="test">
   <option value="1">One</option>
   <option value="2">Two</option>
</select>

JavaScript

// check value on page load
    console.log($('#test').val());


    // check value on change event
    $('#test').change(function(){
        var option = ($(this).find(':selected').val().trim());
        alert(option);
        if (option == "2") {
           alert('test');
        }
    });