Ionic 2 - Using JSON array in HTML

Question

I have an array of JSON objects named 'books', however I can't seem to extract any of the information for use in the HTML.

The array is in the form :

Each object is in the form:

I am trying to access fields such as isbn13 from the HTML file. As follows:

<ion-content>
  <ion-item *ngFor="let book of books">
    {{book.data.isbn13}}
  </ion-item>
</ion-content>

This code throws no error but displays no text. If I reduce it to {{book.data}} it prints [object Object] for each entry in the array.

How can I access isbn13?

i think theres a typo. In your *ngFor you are trying to display isb13 and not isbn13. — Aakash Thakur
– Aakash Thakur, Commented Feb 21, 2017 at 14:32
Adding to @AakashThakur comment, the path seems to be book.data[0].isbn13. — dlcardozo
– dlcardozo, Commented Feb 21, 2017 at 14:34
@AakashThakur What is the recommended method to use for deleting a specific object from the array> — calmcalmuncle
– calmcalmuncle, Commented Feb 21, 2017 at 15:42

Igor Janković · Accepted Answer · 2017-02-21 14:34:57Z

3

You've made a mistake. Data is and array, not an object. So you need to access the first element of array.

<ion-content>
   <ion-item *ngFor="let book of books">
     {{book.data[0].isbn13}}
   </ion-item>
</ion-content>

answered Feb 21, 2017 at 14:31

Igor Janković

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3 Comments

Sorry, I'm not sure how that mistake arrived, it must have been while copying in to the question. {{book.data.isbn13}} still gives no output.

Nice edit dude. Read the above comments in time. haha.

Perfect! It is working now, I will accept the answer ad soon as the time limit allows me to. Thanks!