JSFiddle - React, Tailwind, and code Playground

HTML

<table>
    <tr class="informations1 informations" value="1">
        <td>a</td>
        <td>b</td>
        <td>c</td>
        <td>d</td>
    </tr>
</table>

JavaScript

$(document).ready(function(){
  var i = 1;
  $("tr").click(function(e){
      e.preventDefault();
      var num = $(this).attr('value');
      if(i == 1)
      {
        $(".informations"+num).show('slow');
        i = 0;
      }
      else
      {
        $(".informations"+num).hide('slow');
        i = 1;
      }
      console.log(num);
    });

});