select框存值取值（jquery）

<select id="selected"></select>
<script>
 var orgArr = [
        {
            "value": "option_01",
            "name": "北京朝阳派"
        },
        {
            "value": "option_02",
            "name": "北京东城区"
        },
        {
            "value": "option_03",
            "name": "北京海淀区"
        },
        {
            "value": "option_04",
            "name": "北京丰台区"
        }
    ];
     for (var i = 0; i < orgArr.length; i++) {
            var $select = $("<option value='" + orgArr[i].value + "'>" + orgArr[i].name + "</option>");
            $('#selected').append($select);
    
        }
    </script>

$('#selected option:selected').text()

var count = $("#selected").get(0).options.length;
            for (var i = 0; i < count; i++) {
                if ($("#selected").get(0).options[i].text == text) {
                    $("#selected").get(0).options[i].selected = true;
                    break;
                }
            }