* ngFor on object angular2 [复制]

参见英文答案 > How to iterate object keys using *ngFor?4个
我从api获取了一个JSON文件,

正如您所看到的,对象内部有一个名为“rates”的对象
不幸* ngFor只能在数组上走过.
我正在寻找能获得“关键”和“价值”的东西
喜欢

for(var var in obj)

例如,访问“AUD：0.41852”

{
 "base":"BRL",s
 "date":"2016-10-27","rates":{
 "AUD":0.41852,"BGN":0.57085,"CAD":0.42629,"CHF":0.31634,"CNY":2.1623,"CZK":7.8871,"DKK":2.1709,"GBP":0.26023,"HKD":2.4734,"HRK":2.1894,"HUF":90.257,"IDR":4156.5,"ILS":1.2256,"INR":21.311,"JPY":33.388,"KRW":364.6,"MXN":5.9721,"MYR":1.3381,"NOK":2.6227,"NZD":0.44646,"PHP":15.465,"PLN":1.2636,"RON":1.3146,"RUB":20.025,"SEK":2.8648,"SGD":0.44397,"THB":11.191,"TRY":0.98786,"USD":0.31893,"ZAR":4.4196,"EUR":0.29188
 }

}

这是我的代码,速率对象应该在最新的“离子项”中

currency.html

<ion-header style="direction:rtl;">
  <ion-navbar>
    <ion-title>
      המרת מטבע
    </ion-title>
  </ion-navbar>
</ion-header>
<ion-content padding style="direction:rtl;">
  <ion-list>
    <ion-item>
      <ion-label>בחר מטבע:</ion-label>
      <ion-select okText="אשר" cancelText="בטל" [(ngModel)]="selectCurrencyInput">
        <ion-option value="BGN">BGN</ion-option>
        <ion-option value="BRL">BRL</ion-option>
        <ion-option value="CAD">CAD</ion-option>
        <ion-option value="CHF">CHF</ion-option>
        <ion-option value="CNY">CNY</ion-option>
        <ion-option value="CZK">CZK</ion-option>
        <ion-option value="DKK">DKK</ion-option>
        <ion-option value="GBP">GBP</ion-option>
        <ion-option value="HKD">HKD</ion-option>
        <ion-option value="HRK">HRK</ion-option>
        <ion-option value="HUF">HUF</ion-option>
        <ion-option value="IDR">IDR</ion-option>
        <ion-option value="ILS">ILS</ion-option>
        <ion-option value="INR">INR</ion-option>
        <ion-option value="JPY">JPY</ion-option>
        <ion-option value="KRW">KRW</ion-option>
        <ion-option value="MXN">MXN</ion-option>
        <ion-option value="MYR">MYR</ion-option>
        <ion-option value="NOK">NOK</ion-option>
        <ion-option value="NZD">NZD</ion-option>
        <ion-option value="PHP">PHP</ion-option>
        <ion-option value="ZAR">ZAR</ion-option>
        <ion-option value="PLN">PLN</ion-option>
        <ion-option value="RON">RON</ion-option>
        <ion-option value="RUB">RUB</ion-option>
        <ion-option value="SEK">SEK</ion-option>
        <ion-option value="SGD">SGD</ion-option>
        <ion-option value="THB">THB</ion-option>
        <ion-option value="TRY">TRY</ion-option>
        <ion-option value="USD">USD</ion-option>
      </ion-select>
    </ion-item>
    <ion-item>
      <ion-label>כמות לחישוב</ion-label>
      <ion-input #amountCurrencyInput type="text"></ion-input>
    </ion-item>
    <button ion-button (click)="calc({selectedCurrency:selectCurrencyInput,amountCurrency:amountCurrencyInput.value})">
      חשב מטבע
    </button>
  </ion-list>
  <ion-list *ngIf="load" inset>
    <h2>שער המטח נכון להיום: <span>{{results.date}}</span></h2>
    <h3>המטבע הנבחר: {{results.base}}</h3>
    <ion-item>
      <!-- Object should run here.-->
    </ion-item>
  </ion-list>
</ion-content>

currency.ts

import {Component} from '@angular/core';
import {NetworkServices} from '../../services/network';


@Component({
  selector: 'currency-page',templateUrl: 'currency.html',providers: [NetworkServices]
})
export class CurrencyPage {
  public load: any;
  public results: any;

  constructor(public networkServices: NetworkServices) {
    this.load = false;
  }

  calc(details) {
    this.networkServices.getCurrency(details).then((result) => {
      this.load = true;
      this.results = result;
    });
  }
}

大家好:)

* ngFor不是用于对象,但你可以通过使用Object.keys来解决这个问题

<div *ngFor='let key of Object.keys(yourObject)'>
    <h3>{{yourObject[key].someProperty}}</h3>
</div>

原文链接：https://www.f2er.com/angularjs/140388.html

* ngFor on object angular2 [复制]

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