JSFiddle - React, Tailwind, and code Playground

HTML

<table id=maintablex cell-padding=5px border=1px>
    <tr>
        <td>NAME</td>
        <td>Address</td>
        <td>CITY</td>
        <td>STATE</td>
    </tr>
    <tr>
        <td>ABC</td>
        <td>123</td>
        <td>A</td>
        <td>CA</td>
    </tr>
    <tr>
        <td>AB8</td>
        <td>123</td>
        <td>B</td>
        <td>CA</td>
    </tr>
    <tr>
        <td>AFC</td>
        <td>456</td>
        <td>B</td>
        <td>TX</td>
    </tr>
    <tr>
        <td>POI</td>
        <td>985</td>
        <td>C</td>
        <td>KJ</td>
    </tr>
</table>

JavaScript

$('#maintablex').find('td:nth-child(4):contains("CA")').each(function (index) {
    $(this).parents('tr:first').addClass('active');
});