How to make a property count in a filter?

Question

JavaScript

Good afternoon!
There is a smart filter on the site how to do it so that when choosing parameters in the filter, for example:
The user clicked on filter by brand chose 3 brands clicked apply it was filtered, and in the filter it was cleared as in the photo

Answer 1

Display the number of brands in the smart filter template. Print the arResult array, everything is visible in it.