layer.prompt 弹出框选择时间

layer.prompt({
                    title: '请输入要设置的到期时间',
                    content: '<input type="text" name="end_at" id="end_at" autocomplete="off" class="layui-input" readonly>',
                    formType: 3,
                    success: function () {
                        //日期
                        laydate.render({
                            elem: '#end_at',
                            type: 'datetime'
                        });
                    },
                    btn: ['确定', '取消']
                    , yes: function (index, layero) {
                        let end_at = $('[name="end_at"]').val();
                        if (!end_at) {
                            layer.msg('请选择到期时间');
                            return false;
                        }
                        layer.close(index);
                    }
                })