Survey Data
Work with survey data (properties, methods and events).
Survey.Survey.cssType = "bootstrap";
Survey.defaultBootstrapCss.navigationButton = "btn btn-green";
var surveyValueChanged = function (sender, options) {
    var el = document.getElementById(options.name);
    if(el) {
        el.value = options.value;
    }
};
var json = { questions: [
    {type: "text", name: "name", title: "Your name:"},
    {type: "text", name: "email", title: "Your e-mail"},
    { type: "checkbox", name: "car", title: "What car are you driving?", isRequired: true, colCount: 4,
        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').innerHTML = "result: " + JSON.stringify(result.data);
});

survey.data = {name:'John Doe', email: 'johndoe@nobody.com', car:['Ford']};

$("#surveyElement").Survey({ 
    model: survey ,onValueChanged: surveyValueChanged

});

<!DOCTYPE html>
<html>
<head>
    <title>Work with survey data (properties, methods and events). for plaform jQuery, SurveyJS Library Example</title>
    <script src="https://unpkg.com/jquery"></script>
    <script src="https://surveyjs.azureedge.net/0.96.3/survey.jquery.js"></script>
  
    <link rel="stylesheet" href="https://unpkg.com/bootstrap@3.3.7/dist/css/bootstrap.min.css">
    <link rel="stylesheet" href="./index.css">

</head>
<body>
                <div id="surveyElement">
            </div>
    <div id="surveyResult"></div>

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

</body>
</html>
.btn-green {
  background-color: #1ab394;
  color: #fff;
  border-radius: 3px;
}
.btn-green:hover, .btn-green:focus {
    background-color: #18a689;
    color: #fff;
}
.panel-footer {
    padding: 0 15px;
    border:none;
    text-align: right;
    background-color: #fff;
}
Text boxes are bind to survey values by using events.

Name:

Email:

Cars (use comma to separate values, do not type spaces):


//Use getValue to get the value of the question
survey.getValue('questionName');
//Use setValue to set the value of the question
survey.setValue('questionName', newValue);
//Use data property to get/set survey data as json
survey.data = {"youquestion1": value1, "youquestionN":valueN};
//Use onValueChanged event to get a notification on chaning question value.
survey.onValueChanged.add(function (sender, options) {
    var mySurvey = sender;
    var questionName = options.name;
    var newValue = options.value;
});
//Use onComplete to get survey.data to pass it to the server.
survey.onComplete.add(function (sender) {
    var mySurvey = sender;
    var surveyData = sender.data;
});