onchange（）函数不会根据所选的下拉列表在输入文本中获取值

I have some text that is selected from the dropdown list that I selected, but I have a problem "var Name NodeList []", what should I do?

function selectDate(){
    var sel = document.querySelectorAll("#dateDisabled");
    var opts = sel;
    var array = [];

    for(i = 0; i < opts.length; i++)
    {
        array.push(opts[i].value);
    }

    datesForDisable = array
    $('.form_date').datetimepicker({
        language:  'en',
        weekStart: 1,
        todayBtn:  1,
        autoclose: 1,
        todayHighlight: 1,
        startView: 2,
        minView: 2,
        forceParse: 0,
        datesDisabled: datesForDisable
    });
}