here's the code:

```
rowData = [{
 room: 'Room 1',
 data: [{ 
  name: 'justin'
 },{
  name: 'josh'
 }];
},{
 room: 'Room 2',
 data: [{ 
  name: 'juan'
 },{
  name: 'luna'
 }];
}];

columnDefs = [{
      headerName: 'Room',
      field: 'room'
},{
      headerName: 'Name',
      field: 'name'
}]

```

***HTML***

```
 <ag-grid-angular
      #agGrid
      style="width: 100%; height: 100%;"
      id="myGrid"
      class="ag-theme-alpine-dark"
      [columnDefs]="columnDefs"
      [rowData]="rowData"
      (gridReady)="onGridReady($event)"
    ></ag-grid-angular>

```

What I'm trying to do is to display the child array in the grid.
but when I try to run/console it return undefined.

also I tried this:

```
  valueGetter: function(params: any) {
    return console.log(params.data.data.name);
  }

```

it return undefined