JSFiddle - React, Tailwind, and code Playground

HTML

<table id="test">
    <tr>
    <td>test1<td>
    </tr>
    <tr>
    <td>test2<td>
    </tr>
    <tr>
    <td>test1a<td>
    </tr>
    <tr>
    <td>test2<td>
    </tr>
    </table>

JavaScript

$(function () { 

    $("#test td").each(function () {
        var tdText = $(this).text();
        
        $("#test td")
            .filter(function () { 
                return tdText == $(this).text(); 
            })
            .not(":first")
            .remove();

    });
});