ng-chosen is a directive written in angular 1.x which uses the chosen jquery plugin to make it as usable as the plugin is.
npm install ng-chosen
1.
angular.module('app', ['ng-chosen']);
2.
<select ng-chosen name="test" id="test">
<option>Normal Select Box 1</option>
<option>red</option>
<option>black</option>
<option>yellow</option>
<option>orange</option>
<option>blue</option>
<option>brown</option>
<option>green</option>
<option>white</option>
</select>