Bootstrap select not returning values in the 'changed' fired event

Question

Using Bootstrap Select events

The 'newValue' and 'oldValue' in the callback function isn't returning any value, they are returning true and false respectively, but according to the documentation from the link above they should be returning values right?

 $('#instructorLocationRadius').off('changed.bs.select').on('changed.bs.select', function(event, clickedIndex, newValue, oldValue) { scope.locationDistanceSearched = newValue; // newValue is returning true }); 

 <select id="instructorLocationRadius" class="selectpicker btn-group-lg" style="border-radius: 0px; color: #777;"> <option class="distance" value="2">2 miles</option> <option class="distance" value="5">5 miles</option> <option class="distance" value="8">8 miles</option> <option class="distance" value="15">15 miles</option> <option class="distance" value="25">25 miles</option> </select> 

Answer 1

Try using

$('#instructorLocationRadius').on('changed.bs.select', function(event, clickedIndex, newValue, oldValue) {
  scope.locationDistanceSearched = newValue; // newValue is returning true
});