Angular2 ngFor how to count the number of looping values?

Question

I am using ngFor to loop 8 json objects and I want not only to loop the values but also I want to count the number of looping values and display the number.

For example,

Answer 1

Demo

  

    {{i}}. {{item}}
  

{{items ? items.length : ''}}

You could just print the length of the items array.