How to show only essential data from an API using Angular 2?

Question

How to show only essential data from an API using Angular 2?

Welcome! I am looking to display only a portion of data retrieved from an API.

For example, if my API data includes Apple, Banana, Orange, Pineapple, Cherry, and Strawberry, I would like to display just 5 of them.

Below is the code snippet used to fetch and display the data:

<div *ngFor="let apidata of data">
  <div *ngIf="apidata.AssignmentNumber[0] == 1" class="box">
      <div class="box-assignmentnumber-holder">
        <span id="AssignmentNumber" [ngStyle]="{'color': apidata.AssignmentNumber[1] == 1 ? '#FF8C00' : 'green'}">{{apidata.AssignmentNumber}}</span>
      </div>
      <div id="arrow" (click)="this.clickMe =! this.clickMe"></div>
      <div [ngClass]="(this.clickMe==true)?'box-details':'box-details-toggle'">
  </div>
</div>

angular api typescript

Answer 1

Answer №1

If you want to limit the results displayed in your api request, you can do so easily.

When making the API call, you can use the subscribe method to handle the response:
this.apiCall().subscribe(res => {
   // Save the full data
   this.fullData = res;
   // Display only the first 5 results
   this.data = res.slice(0, 5);
});

For a demonstration, check out this plnkr example: https://plnkr.co/edit/DheUgjQSbMo3FpLv8oWz?p=preview

Answer 2

If you want to limit the results displayed in your api request, you can do so easily.

When making the API call, you can use the subscribe method to handle the response:
this.apiCall().subscribe(res => {
   // Save the full data
   this.fullData = res;
   // Display only the first 5 results
   this.data = res.slice(0, 5);
});

For a demonstration, check out this plnkr example: https://plnkr.co/edit/DheUgjQSbMo3FpLv8oWz?p=preview

Answer 3

Answer №2

When utilizing a variable named "page" (where page can be 0, 1, 2, 3...) alongside another variable called num (representing the number of items), the following code snippet can be used:

<div *ngFor="item of items.slice(page*num,(page+1)*num)">
...
<div>

Answer 4

When utilizing a variable named "page" (where page can be 0, 1, 2, 3...) alongside another variable called num (representing the number of items), the following code snippet can be used:

<div *ngFor="item of items.slice(page*num,(page+1)*num)">
...
<div>

How to show only essential data from an API using Angular 2?

Answer №1

Answer №2

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