JSFiddle - React, Tailwind, and code Playground

HTML

<div ng-app ng-controller="buildControl">
    {{test_obj.used}}
    <select multiline="multiline" ng-model="test_obj.used">
        <option ng-repeat=" d in test_obj.data" ng-value="d.id">{{d.id}}</option>
    </select>
</div>
ahoj

JavaScript

function buildControl($scope){
    $scope.test_obj = {
        used:3,
        data:[{id:1},{id:2},{id:3},{id:4}]
    };
}