JSFiddle - React, Tailwind, and code Playground
HTML
<table id="table1">
<tr>
<td>dasd</td>
<td>asdasd</td>
<td>dasda</td>
<td>asdasd</td>
</tr>
</table>
<table id="table1">
<tr>
<td>dasd</td>
<td>asdasd</td>
<td>dasdadasdasdasd</td>
<td>asdasd</td>
</tr>
</table>
JavaScript
var myArray = new Array();
$(document).ready(function() {
$("#table1 tr td:nth-child(3)").each(function(i){
myArray.push($(this).text());
});
alert(myArray);
});