JSFiddle - React, Tailwind, and code Playground

HTML

<table id="ItemsTable" border=1 >
    <tbody>
   <tr>
     <th>
       Number
     </th>
     <th>
       Number2
     </th>
    </tr>
  <tr>
    <td>32174711</td>     <td>32174714</td>
  </tr>
  <tr>
    <td>32174712</td>     <td>32174713</td>
  </tr>
  <tr>
    <td>32174718</td>     <td>32174713</td>
  </tr>
</tbody>
</table>

JavaScript

var arr = [];
$("#ItemsTable tr").each(function(){
    arr.push($(this).find("td:first").text());
});
for (i=0;i<arr.length;i++)
{
document.write(arr[i] + "<br >");
}