JSFiddle - React, Tailwind, and code Playground

HTML

<div ng-controller="Ctrl">
    <select ng-model='sid' ng-init='sid = 473'>
        <option ng-repeat='y in arr' value='{{ y.id }}'>
            {{ y.id+' - '+y.title }}
        </option>
    </select>
    {{ sid }}
    <button ng-click='sid=474'>change to 474</button>
</div>

JavaScript

var app =angular.module('app', []);

function Ctrl($scope){
    $scope.arr = [{"id":472,"title":"aa"},{"id":473,"title":"bb"},{"id":474,"title":"cc"}];
}