JSFiddle - React, Tailwind, and code Playground

HTML

<table>
    <tr>
        <td>A1</td>
        <td>A2</td>
    </tr>
    <tr>
        <td>B1</td>
        <td>B2</td>
    </tr>
</table>

<textarea></textarea>

CSS

textarea {
    width: 100%;
    height: 100px;
}

JavaScript

var tableData = $('table tr').map(function() {
    return [$(this).find('td').map(function() {
        return $(this).text();
    }).get()];
}).get();

var output = '';
$.each(tableData, function(i, row) {
    $.each(row, function(i, cell) {
     	output += cell + '\t';
    })
    output += '\n';
})
$('textarea').val(output);