JSFiddle - React, Tailwind, and code Playground
by wiltomap
HTML
<table>
<tbody>
<tr>
<td>Support</td>
<td>
<select id="support_libelle" name="support_libelle">
<option value="nullOption" label="-- Non renseigné --" style="display: none;">-- Non renseigné --</option>
<option selected="selected" value="" label=""></option>
<option value="01" label="Branchement">Branchement</option>
<option value="02" label="Canalisation">Canalisation</option>
</select>
</td>
</tr>
<tr>
<td>Code Siveer</td>
<td>
<input type="text" value="" name="idtron">
</td>
</tr>
</tbody>
</table>
JavaScript
$('select[name=support_libelle]').change(function() {
$('input[name=idtron]').parents("tr").show();
if ($('select[name=support_libelle]').val() == '01') {
$('input[name=idtron]').parents("tr").hide();
}
//alert('test');
});