Hola!
This is not a feature request per se, instead, it is an easy solution to know how many times an element is in an array or list to use it later and create a ranking, a sorted list, etc.
Glide has many array plugins but I don’t know why something like it is missing when I needed it (it’s the reason I created this small code). Maybe the Duplicated Items plugin is closest to get it but it’s not enough.
Well, the case could be this:

and in order to know how many times an element is in an array or list, you have to type this JS code in the JavaScript plugin
const arr=p1.split(",")
x= arr.filter(function(valor)  {
       return valor == p2;
      }).length 
return x
…  and that’s all folks!  
Maybe Glide can take this code and create a new plugin to increase their set of plugins and make the life easier to next developers in future without creating a relation/rollup . @SantiagoPerez @George_J
Saludos!

