JSFiddle - React, Tailwind, and code Playground

HTML

<TABLE>
    <TR>
        <TD>
            <INPUT TYPE='CHECKBOX' />
        </TD>
        <TD>
            <INPUT TYPE='TEXT' CLASS='MYTEXT'/>
        </TD>
        <TD>SOMETHING</TD>
    </TR>
</TABLE>
<BUTTON ID="ADD">ADD
<BUTTON ID="DEL">DELETE

JavaScript

$("#ADD").click(function(){
    $("table").append($("tr:last").clone(true));
    $("tr:last input").val("");
});

$("#DEL").click(function(){
    var checked = $("table tr input:checked").size();
    var total = $("table tr").size();
    if (checked < total) {
    	$("table tr input:checked").parents('tr').remove();
    } else {
        alert("You cannot delete all rows!");
    }
});