How to remove all rows of the table but keep the header

Question

I want to remove all rows of my table except the header.

This is what I've tried but it always deletes all rows and header:

$("#<%=tblDetailFourn.ClientID%> tbody tr").remove();

$("#<%=tblDetailFourn.ClientID%> tbody tr").not("thead tr").remove();

$("#<%=tblDetailFourn.ClientID%> tr").not("thead tr").remove();

$("#<%=tblDetailFourn.ClientID%> tbody").not("thead").remove();

$("#<%=tblDetailFourn.ClientID%> tbody").remove();

$("#<%=tblDetailFourn.ClientID%> > tbody").remove();

Here's the html:

<table id="tblDetailFourn" runat="server" class="ProjetTable ProjetTableHover">
    <thead>
       <tr>
          <th style="width:200px">Rôle de Ressource</th>
          <th style="width:200px">Nom Prénom</th>
          <th style="width:120px">Tel</th>
          <th style="width:200px">Courriel</th>
          <th style="width:80px">Actif</th>
          <th style="width:33px"></th>
          <th style="width:33px"></th>
      </tr>
    </thead>
    <tbody>
    </tbody>
</table>

Answer 1

$('#tblDetailFourn tbody').empty();