Custom aggregator not working with pivotUI in Angular project

[anotherJrDev]

Hi everyone,

I am trying to create and manage a custom aggregator function in order to execute my own code in each filter aggregator. This is my code actually:

And this is what is producing:

What I want to get is to return that 22 as the value in the cell, for example.

Probably it is an stupid error 'cause I am really new with this tool. Hope someone find it easy and help me asap.