如果变量未初始化，如何创建bundle？

Question

如果变量未初始化，如何创建bundle？

using System;
using System.Data;
using System.Linq;
using System.Windows.Forms;

namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        DataGridView dataGridView;
        DataTable dataTable;
        DataView dataView;
        TextBox textBoxSearch;

        public Form1()
        {
            //InitializeComponent();

            Width = 800;
            dataGridView = new DataGridView { Parent = this, Dock = DockStyle.Top };
            textBoxSearch = new TextBox { Parent = this, Top = 200 };
            textBoxSearch.TextChanged += TextBoxSearch_TextChanged;

            dataTable = new DataTable();

            dataTable.Columns.Add("Name");
            dataTable.Columns.Add("Country");
            dataTable.Columns.Add("City");

            dataTable.Rows.Add("JAck", "Country1", "City1");
            dataTable.Rows.Add("Name2", "Country1", "City2");
            dataTable.Rows.Add("JACK", "Country2", "City1");

            dataView = new DataView(dataTable);
            dataGridView.DataSource = dataView;
        }

        private void TextBoxSearch_TextChanged(object sender, EventArgs e)
        {
            var words = textBoxSearch.Text.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);

            if (!words.Any())
            {
                dataGridView.DataSource = dataView;
                return;
            }

            var dv = dataView;

            foreach (var word in words)
            {
                var values = dataTable.Columns
                    .OfType<DataColumn>()
                    .Select(c => "Convert([" + c.ColumnName + "], System.String)")
                    .Select(c => c + " like '%" + word + "%'");

                var filter = string.Join(" or ", values);
                dv = new DataView(dv.ToTable());
                dv.RowFilter = filter;
                dataGridView.DataSource = dv;
            }
        }
    }
}

如果我没有初始化变量小部件

var widget = {
  init: function(){thmh}
}

当我创建捆绑包时，Webpack错过了这个模块小部件，如何关闭所有未命中的模块？ 我的模块在Html页面上初始化。我不能在JS文件中初始化它们。