错误错误：找不到类型为“object”的不同支持对象“[object object]”。NgFor只支持绑定到Iterables Angular 9

Question

  <div class="form-group">
                <label for="">Ville</label>
                <select class="form-control" #hh
                    (change)="getidregion(hh.value)">
                    <option></option>
                    <option *ngFor="let ville of dropDownList"
                        [value]="ville.id">
                        {{ville.nomVille}}
                    </option>

                </select>

            </div>

dropDownList: [];

  responsable = {

    id: 0,
    nomResponsable: '',
    prenomResponsable: '',
    emailResponsable: '',
    mdpResponsable: '',
    img: '',
    rib: '',
    dtn: '',
    region: 0,
    ville: 0,
  };

    methodAPIToGetVilles() {
        this.res.getville()
          .subscribe((s: any) => {
            this.dropDownList = s;
    
          });
      }
    
      //methode to get the value off the idville in the option
      getidville(id: any): void {
        this.responsable.ville = id;
    
      }
    
      curUser: any = this.responsable[0];

"@context": "/api/contexts/Ville",
    "@id": "/api/villes",
    "@type": "hydra:Collection",
    "hydra:member": [
        {
            "@id": "/api/villes/6",
            "@type": "Ville",
            "nomVille": "Davidboeuf"
        },
        {
            "@id": "/api/villes/7",
            "@type": "Ville",
            "nomVille": "Benoitboeuf"
        }];

Answer 1

我想你是想做这样的事情：

<div *ngFor="let item of object | keyvalue">
  {{item.key}}:{{item.value}}
</div>

这里也很好地回答了这些问题：

以角度迭代对象