ngFor length in Angular 5

Question

I have three buttons :

All (Reals+ Fakes), Reals(total count), Fakes(total count)

I am trying to get the total count of my total feeds which will be shown in

Answer 1

As per your comments, to retrieve the count of Feed_A and Feed_B, you can make use of Array#filter and Array#length:

const feedACount = feeds.filter(feed => feed.feed_type !== '').length;
const feedBCount = feeds.length - feedACount;