amount of returned values - REST API angular

Question

I am using regular REST API with Angular like under the link: https://www.techiediaries.com/angular-by-example-httpclient-get/

In the function:

ngOnInit() {

    this.dataService.sendGetRequest().subscribe((data: any[])=>{
      console.log(data);
      this.products = data;
    })  
  }

can we get into data and get to know how many elements is returned?

I need to know how many elements are returned from backend.

Answer 1

The API returns array data: any[] . Javascript Array has length property which shows the total number of items in the array. All you need is to use data.length . If you are dealing with data, then you probably need to know the basics of Array: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array

Answer 2

If data is an array simply use length property.

ngOnInit() {

    this.dataService.sendGetRequest().subscribe((data: any[])=>{
      console.log(data);
      this.products = data;
      this.productsLength = data.length;
    })  
  }