score:3

Accepted answer
const columns = [
  // ...
  {
    field: 'attributeName',
    headerName: 'Attribute Name',
    valueGetter: (params) => {
      return params.getValue(params.id, "attributes").name;
    }
  },
  // ...
];

score:1

<DataGrid rows={detailsRows} columns={props.columns} pageSize={10}/>

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