JSFiddle - React, Tailwind, and code Playground

by ledak

HTML

<table><thead>
<th>Тип</th><th>Заголовок</th><th>Текст</th><th>Дата</th>
<thead><tbody><tr id='alltr1'>
<td id='td_type1'>ololo</td>
<td>ololo</td>
<td>ololo</td>
<td>ololo</td>
</tr>
</tbody></table>

JavaScript

var tds = document.getElementsByTagName('td');
Array.prototype.forEach.call(tds,function(td){
    var clo = td.innerHTML
    td.onmouseover = function() { 
        td.innerHTML = 'Удалить';
    };
    td.onmouseout = function() { 
        td.innerHTML = clo;
    };        
});