@mui/x-data-grid/modern/hooks/features/density/densitySelector.js

The community edition of the data grid component (MUI X).

import { createSelector } from '../../../utils/createSelector';
export const gridDensitySelector = state => state.density;
export const gridDensityValueSelector = createSelector(gridDensitySelector, density => density.value);
export const gridDensityFactorSelector = createSelector(gridDensitySelector, density => density.factor);