JSFiddle - React, Tailwind, and code Playground

HTML

<table>
    <tr>
        <td>
            asdasdasdasdasdasd
        </td>
    </tr>
     <tr>
        <td>
            asdasdasdasdasdasd
        </td>
    </tr>
     <tr>
        <td>
            asdasdasdasdasdasd
        </td>
    </tr>
     <tr>
        <td>
            asdasdasdasdasdasd
        </td>
    </tr>
     <tr>
        <td>
            asdasdasdasdasdasd
        </td>
    </tr>
     <tr>
        <td>
           asdasdasdasdasdasd
        </td>
    </tr>
</table>

CSS

td {
    border: 1px solid black;
}

JavaScript

var tds = document.getElementsByTagname("td");
for(i=0;i<tds.length;i++)
{
    tds[i].onclick = function()
                      {
                          alert(i);
                      };
}