Question

找不到管道“键值”。在9号角

"@angular/animations": "^9.0.1",
    "@angular/common": "~9.0.1",
    "@angular/core": "~9.0.1",
    "@angular/forms": "~9.0.1",
    "@angular/platform-browser": "~9.0.1",
    "@angular/platform-browser-dynamic": "~9.0.1",
    "@angular/router": "~9.0.1",

 <div *ngFor="let item of faqData | keyvalue; let i=index">
            {{item.key}}:{{item.value}}
          </div>
          <p>Map</p>
          <div *ngFor="let item of map | keyvalue">
            {{item.key}}:{{item.value}}
          </div>

 faqData = { id: 1, name: "Abdul Rafay" };
  object: {[key: number]: string} = {2: 'foo', 1: 'bar'};
  map = new Map([[2, 'foo'], [1, 'bar']]);

Answer 1

它可以fine with Angular9使用，并且在使用angular 6+的所有版本的应用程序中都可以正常使用。

但是，如果您也可以尝试其他方法。

然后在TS

 <div *ngFor="let prop of key">
          <div>key: {{prop}}</div>
          <div>value: {{faqData [prop]}}<div>
 </div>

FIX： OP发现他在导入下缺少CommonModule

角度9-找不到管道“键值”

1 个答案: