recently encountered a JS problem in the self-learning Django framework. I don"t know whether it is because the browser does not support it or whether it is written by its own code
 Please take a look at 
 html code 
    <p class="text-right">
        <button id="add_column" onclick="add_column()" class="btn btn-primary"> add column </button>
    
JS Code
<script type="text/javascirpt" src="{% static "js/jquery.js" %}"></script>
<script type="text/javascirpt" src="{% static "js/layer.js" %}"></script>
<script type="text/javascript">
    function add_column(){
        var index = layer.open({
            type: 1,
            skin: "layui-layer-rim",
            area: ["400px","200px"],
            title: "",
            content: "<div class="text-center" style="margin-top:20px"><input type="text">
</div>",
            btn: ["",""],
            yes: function(index, layero){
                column_name = $("-sharpid_column").val();
                alert(column_name);
            },
            btn2: function(index, layero){
                layer.close(index);
            }
        });
    }
</script>
error message
 
 

