title: Bootstrap select live search input when change will extract values
body: <p>I'm trying to add an option on my select input coming from an API JSON Response. and I'm currently using Bootstrap 4 and Bootstrap-select
  i was able to find the liveSearchListener: function together with this.$searchbox.on('input propertychange' but when i'm putting a function to add an option. my function is not working and option items are not added.</p>
  <p>Can anyone help?
  Thank you so much!</p>