JSFiddle - React, Tailwind, and code Playground

HTML

<table id="pricehistory">
<tr data-day="1">
   <td>Thu 22/08/13 00:00</td>
   <td>value 1</td>
</tr>
<tr data-day="1">
   <td>Thu 22/08/13 00:00</td>
   <td>value 2</td>
</tr>
<tr data-day="1">
   <td>Thu 22/08/13 00:00</td>
   <td>value 3</td>
</tr>
<tr data-day="2">
   <td>Mon 14/01/15 00:00</td>
   <td>value 2</td>
</tr>
<tr data-day="3">
   <td>Tues 15/01/15 00:00</td>
   <td>value 3</td>
</tr>
</table>

JavaScript

var allAvailableOptions = ["value 1","value 2","value 3"];

var dataAttributes = {};

$("#pricehistory tr").each(function (index, el) {
       if ( ! ($(el).data('day') in dataAttributes) ) dataAttributes[$(el).data('day')] = [];
       dataAttributes[$(el).data('day')].push( $(el).find('td:last').text() );
    });

alert(
"Available Options:" + "\n" + allAvailableOptions + "\n\n" +
"Data Attribute Array1:" + "\n" + dataAttributes[1] + "\n\n" +
"Data Attribute Array2:" + "\n" + dataAttributes[2] + "\n\n" +
"Data Attribute Array3:" + "\n" + dataAttributes[3]
);

$.each(dataAttributes, function (i, v) {
    
    var thisArray = this.toString();
    alert(thisArray);
    if(thisArray == allAvailableOptions) {
        alert("match");
    }
    else
    {
        alert("no match");
    }
});