JSFiddle - React, Tailwind, and code Playground

by Kelly Hawker

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<table class="staff">
<tbody>
  <tr>
    <td>1</td>
    <td>2</td>
    <td>3</td>
    <td>4</td>
    <td>5</td>
    <td>6</td>
    <td>7</td>
    <td>8</td>
    <td>9</td>
    <td>10</td>
    <td>11</td>
    <td>12</td>
    <td>13</td>
  </tr>
</tbody>
</table>

JavaScript

$("table.staff td").each(function (index) {
	var odd = isOdd((index + 1));
	if (odd) {
		$("table.staff tbody").append($("<tr>"));
	}
	$("table.staff tr").last().append($(this));
});
$("table.staff tr").first().remove();
function isOdd(num) {
	return num % 2;
}