title: Why l got some empty array from url
body: <p>I am getting data json from url. Everything working fine, but the problem is sometime I dont get all data json array from url even though it exists. My data array json is about 60 to 70, but I got only 15 to 20 element. </p>
  
  <p><a href="https://i.stack.imgur.com/12XR5.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/12XR5.jpg" alt="here is my app showing t you only some element and the rest is empty  "></a></p>
  
  <p>My code:</p>
  
  <pre><code> async getData() {
  
  
    const loading = await this.loadingController.create({
      message: 'Loading'
    });
    await loading.present();
  
  
    this.http.get('/airport.json?code=krt', {}, {})
    .then(data =&gt; {
  
      this.test = JSON.parse(data.data);
      const parsed = JSON.parse(data.data);
      this.items = parsed.response.airport.schedule.arrival.data;
      loading.dismiss()
  
  
  
  
    }), err=&gt;{
      this.test =err
      loading.dismiss()
    }
  
  
  
  }
  </code></pre>
  
  <p>html:</p>
  
  <pre><code> &lt;ion-item *ngFor="let item of items"  routerDirection="forward" &gt; 
          &lt;table&gt;
              &lt;tbody&gt;
              &lt;tr &gt;
              &lt;td &gt; 
                  &lt;img src="operators/{{item?.airline.code.icao}}_logo0.png"  (error)="handleImgError($event, item)" class="img-logo"&gt;
                &lt;/td&gt;
              &lt;td text-left&gt;{{item?.identification.number.default}}&lt;/td&gt;
              &lt;td text-center&gt;{{item?.airport.region.city}}&lt;/td&gt;
              &lt;td text-right&gt;{{item?.time.scheduled.arrival  * 1000 | date:"h:mma"}}&lt;/td&gt;
              &lt;/tr&gt;
              &lt;tr &gt;
              &lt;td &gt;&amp;nbsp;&lt;/td&gt;
              &lt;td &gt;&lt;/td&gt;
              &lt;td text-center&gt;{{item?.aircraft.model.code}}&lt;/td&gt;
              &lt;td text-right&gt;{{item?.status.generic.status.text}}&lt;/td&gt;
              &lt;/tr&gt;
              &lt;/tbody&gt;
              &lt;/table&gt;
        &lt;/ion-item&gt;
  </code></pre>
  
  <p>Some times l got null in some of data ! . how can l avoid null  ? any solution please? </p>