How to display row index in Ag-Grid in opposite dirrection?

Question

I need to display row index for Ag-grid table. My problem is that it numerates first item on the top of grid as Nr 1. But i need ag grid to numerate first item with larges number and item at the bottom oldest one with Nr 1. I was looking a lot on documentation, but havent found any smart solution. I could write my own cell renderer here but i think it would be wrong and complicated way of doing so. Does anyone knows is it possible to do something with value getter to make it count in opposite direction?

<AgGridColumn
  headerName={'Nr'}
  field="i"
  width={50}
  lockPosition={true}
  valueGetter='node.rowIndex+1' 
/> 

Answer 1

Try this:

HTML:

<AgGridColumn
          headerName={'Nr'}
          field="i"
          width={50}
          lockPosition={true}
          valueGetter={inverseRowCount}
        />

JS:

const inverseRowCount = (params) => {
    return params.api.getDisplayedRowCount() - params.node.rowIndex;
  };

Demo.