One choice - Dropdown question

One choice - dropdown (type:'dropdown') 

                        

    
        Survey.StylesManager.applyTheme("orange");
    


var json = { questions: [
    { type: "dropdown", name: "car", title: "What car are you driving?", isRequired: true, colCount: 0,
        choices: ["None", "Ford", "Vauxhall", "Volkswagen", "Nissan", "Audi", "Mercedes-Benz", "BMW", "Peugeot", "Toyota", "Citroen"] }
]};

window.survey = new Survey.Model(json);


    survey.onComplete.add(function(result) {
        document.querySelector('#surveyResult').textContent =
            "Result JSON:\n" + JSON.stringify(result.data, null, 3);
    });


function onAngularComponentInit() {
    Survey.SurveyNG.render("surveyElement", { 
        model: survey 
    });
}
var HelloApp =
    ng.core
        .Component({
            selector: 'ng-app',
            template: '<div id="surveyContainer" class="survey-container contentcontainer codecontainer"><div id="surveyElement"></div></div> '})
        .Class({
            constructor: function() {
            },
            ngOnInit: function() {
                onAngularComponentInit();
            }
    });
document.addEventListener('DOMContentLoaded', function() {
    ng.platformBrowserDynamic.bootstrap(HelloApp);
});


                    
<!DOCTYPE html>
<html>
<head>
    <title>One choice - dropdown (type:&#39;dropdown&#39;), Angular2 Survey Library Example</title>


    <meta name="viewport" content="width=device-width, initial-scale=1">
    <script src="https://npmcdn.com/zone.js/dist/zone-evergreen"></script>
    <script src="https://npmcdn.com/core-js@2.6.5/client/shim.min.js"></script>
    <script src="https://npmcdn.com/rxjs@5.0.0-beta.6/bundles/Rx.umd.js"></script>
    <script src="https://npmcdn.com/@angular/core@2.0.0-rc.5/bundles/core.umd.js"></script>
    <script src="https://npmcdn.com/@angular/common@2.0.0-rc.5/bundles/common.umd.js"></script>
    <script src="https://npmcdn.com/@angular/compiler@2.0.0-rc.5/bundles/compiler.umd.js"></script>
    <script src="https://npmcdn.com/@angular/platform-browser@2.0.0-rc.5/bundles/platform-browser.umd.js"></script>
    <script src="https://npmcdn.com/@angular/platform-browser-dynamic@2.0.0-rc.5/bundles/platform-browser-dynamic.umd.js"></script>
<script src="https://surveyjs.azureedge.net/1.1.15/survey.angular.js"></script>
<link href="https://surveyjs.azureedge.net/1.1.15/survey.css" type="text/css" rel="stylesheet" />
    <link rel="stylesheet" href="./index.css">

</head>
<body>
            <ng-app></ng-app>
    <div id="surveyResult"></div>

<script type="text/javascript" src="./index.js"></script>

</body>
</html>
There are several ways to set the 'choices' property.
// The classic way to set the property. The result values are numbers: 1 and 2
choices: [{ value: 1, text: "Value 1" }, { value: 2, text: "Value 2" }]
// The values are: 1 and 'Value 2' and texts are '1' and 'Value 2'
choices: [{ value: 1 }, { value: "Value 2" }]
// The values and texts are same
choices: ["Value 1", "Value 2"]
// The values are '1' and '2' and texts are 'Value 1' and 'Value 2'
choices: ["1|Value 1", "2|Value 2"]

Choices order: (default is 'none') 

var q = survey.getQuestionByName('car');
q.choicesOrder = yourvalue; 
survey.render();

var q = survey.getQuestionByName('car');
q.hasOther = yourvalue; 
survey.render();

Others text 

var q = survey.getQuestionByName('car');
q.otherText = yourvalue; 
survey.render();