JSFiddle - React, Tailwind, and code Playground

HTML

<table>
  <tr><td>aaa</td><td>bbb</td></tr>
  <tr><td>ccc</td><td>ddd</td></tr>
  <tr><td>eee</td><td>fff</td></tr>
</table>

JavaScript

var array = [];
var table = document.querySelector("table tbody");
var rows = table.children;
for (var i = 0; i < rows.length; i++) {
	var fields = rows[i].children;
  var rowArray = [];
  for (var j = 0; j < fields.length; j++) {
  	rowArray.push(fields[j].innerHTML);
  }
  array.push(rowArray);
}
console.log(array);