angular – 如何让* ngFor循环执行前n-1次,不希望显示最后一个索

<div *ngIf="userdata; else blank;">                         
 <table>
  <thead>
   <tr>
    <th>Id</th>
    <th>Name</th>
    <th>Email</th>
    <th>Address</th>
    <th>Role</th>
    <th>Gender</th>
    <th>Actions</th>
   </tr>
  </thead>
  <tbody>
   <tr *ngFor="let data of userdata">                                          
    <td>{{data.Id}}</td>
    <td>{{data.Name}}</td>
    <td>{{data.Email}}</td>
    <td>{{data.Address}}</td>
    <td>{{data.Role}}</td>
    <td>{{data.Gender}}</td>
    <td>
     <button type="button" (click)="setUser(data)" class="btn btn-default btn-sm edit">
      <span class="glyphicon glyphicon-edit"/> Edit</button>                                              
     <button type="button" id="close" style="height: 30px;"
      (click)="deleteUser(data.Id)" class="btn btn-default btn-sm close" aria-label="Close">
      <span aria-hidden="true">&times;</span>
     </button>
    </td>                                           
   </tr>  
  </tbody>
 </table>
</div>
<ng-template #blank>No Records found...</ng-template>

这是我在userdata数组中得到的：

[{
    "Id": "1","Name": "sdfd","Email": "fdg","Address": "dfg","Role": "Admin","Gender": "male"
},{
    "Id": "2","Name": "dgfhh","Email": "gdh","Address": "hhh","Role": "User","Gender": "female"
},{
    "Id": "3","Name": "dfgf","Email": "fgdh","Address": "fghd","Role": "Super-Admin","{"blank-email":"Email cannot be blank","blank-role":"You must play some role","blank-gender":"You must specify your Gender"}"]

所以在这里,我不希望从数组中执行：

“{”blank-email”:”Email cannot be blank”,”blank-role”:”You must
play some role”,”blank-gender”:”You must specify your Gender”}”