问将div换行为javascript输出

EN

<a id="show_selected">Click to Show</a>
<div id="selected"></div>

<script type="text/javascript">
    function showSelect(){
        $("#show_selected").bind("click", function (e) {
            e.preventDefault();
            $('#selected').text($("#fvip").mapster("get"));
        });
    }
    showSelect();
</script>

<div id="selected">001,002,003,004</div>

<div="selected">
   <div class="something">001</div> 
   <div class="something">002</div> 
   <div class="something">003</div> 
   <div class="something">004</div>
</div>

    function showSelect(){
        $("#show_selected").bind("click", function (e) {
        e.preventDefault();
        $('#selected').text($("#fvip").mapster("get"));
            let wrapContainer = ""
            let stringArray = $("#selected").text().trim().split(' ');
            $("#selected").empty()
            stringArray.forEach(function(item, index) {
            let wrapContainer = $('<div class="test">' + item + '</div>');
            $("#selected").append(wrapContainer)
            });
        });
    }
    showSelect();

<div id="selected">
    <div class="test">001,002,003,004</div>
</div>