redux selectors naming conventions

FactChartHelpers.js

/*
  FactChartHelpers.js
*/
export const createHostCounterFromFactChartData = (chartData = []) =>
  chartData.length > 0
    ? chartData
        .map(item => item[1])
        .reduce((accumulator, currentValue) => accumulator + currentValue)
    : 0;

FactChartSelectors.js

/*
  FactChartSelectors.js
*/
import { createSelector } from 'reselect';
import { createHostCounterFromFactChartData } from './FactChartHelpers';

export const selectFactChart = state => state.factChart;

export const selectFactChartData = createSelector(
  selectFactChart,
  factChart => factChart.chartData,
);

export const selectFactChartHostCounter = createSelector(
  selectFactChartData,
  chartData => createHostCounterFromFactChartData(chartData),
);