title: angularjs alert message not coming properly
body: <p>when no dropdown is selected message comes but when any one or more dropdown is selected then also the message is coming Please select atleast one.Below is my angularjs</p>
  
  <pre><code>$scope.check = function () {
  
  
   if ($scope.landing.class == null || $scope.landing.class == undefined|| $scope.landing.class == "" &amp;&amp; $scope.landing.fueltype == undefined || $scope.landing.fueltype == null || $scope.landing.fueltype == "" &amp;&amp; $scope.landing.transmiss == null || $scope.landing.transmiss == undefined || $scope.transmiss == "" &amp;&amp; $scope.landing.driving == null || $scope.landing.driving == undefined || $scope.driving == "" &amp;&amp; $scope.landing.pick == null || $scope.landing.pick == undefined || $scope.landing.pick == "" &amp;&amp; $scope.landing.stat == null || $scope.landing.stat == undefined || $scope.landing.stat == "") {
              alert('Please select atleast one')
          }
      }
  </code></pre>