如何使用ngFor Angular 2在对象数组中显示数组

Question

我需要显示位于对象数组中的数组质量.我试过ngFor使用下面的代码调用它.我的用法有问题ngFor吗？

import { Component} from '@angular/core';

@Component({
    selector: 'my-app',
    template: `<table>
                  <thead>
                    <tr>
                       <th>Name</th>
                       <th>Quality1</th>
                       <th>Quality2</th>
                    </tr>
                  </thead>
                  <tbody>
                      <tr *ngFor"let item of people">
                         <td>{{item.Name}}</td>
                         <td *ngFor"let item of people.quality">item.quality1</td>
                         <td *ngFor"let item of people.quality">item.quality2/td>
                       </tr>
                  </tbody>
              </table>
   })

  export class AppComponent{    
     people: any = [{Name:"John", quality:[{quality1: "nice", quality2: "humble"}]}, {Name:"Dave", quality:[{quality1: "kind", quality2: "caring"}]} ];
  }

截至目前,只有名字出现在表格中,但我也希望质量出现.

Answer 1

您可以使用<ng-container>来组合多个节点，而*ngFor无需向 DOM 引入另一个元素：

<ng-container *ngFor"let item of people.quality">
  <td>item.quality1</td>
  <td>item.quality2/td>
</ng-container>