How to bind dropdown values to javascript array?

How to bind dropdown values to javascript array?

HTML

<script src="https://code.jquery.com/jquery-2.1.3.min.js"></script>
<select id="monthToSelect"></select>

JavaScript

var months = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
var option = '';

for (i=0;i<months.length;i++){
   option += '<option value="'+ months [i] + '">' + months [i] + '</option>';
}

$('#monthToSelect').append(option);