ERROR 错误：尝试区分“nombreyo”时出错。只允许使用数组和可迭代对象

Question

尝试在 html 中绘制类时出现此错误

<li>
    <ul>
      <li *ngFor="let refac of refactormodel" >
        -- word_to_rename: {{refac.word_to_rename}}
        -- renowned_word: {{refac.renowned_word}}
         -- name: {{refac.name}}
      </li>
    </ul>     
  </li>

我希望如果类是空的，我不绘制它，但是是的，并且在绘制时它会给出错误： ERROR 错误：尝试区分“nombreyo”时出错。只允许使用数组和可迭代对象

private refactormodel : getrefactormodel[] = [];

....

this.authService.getrefactor().subscribe((res : getrefactormodel[])=>{
        this.refactormodel = res;
      });

 getrefactor() {
          return this.http.get(apiUrl + 'getRules');
         
      } 

重构模型.ts：

export interface getrefactormodel {
      word_to_rename: String;
      renowned_word: String;
      name: String;

    }

Answer 1

你有没有这样尝试过？：

  <li *ngFor="let refac of refactormodel" >{{ '-- word_to_rename' + refac.word_to_rename + '...further text fragments...' }}
  </li>