smart_sort6.js

// store/modules/base.js

// initial state
const initialState = Map({
  mainData: List(... ),
  originalData: List(... ),
  arrowToggle: 0,
  sortType: "",
  sortToggle: false
});

export default handleActions(
  {
    [SORT_TYPE]: (state, action) => {
      const { sortType } = action.payload;

      const originalData = state.get("originalData").toJS();

      const sortToggle = state.get("sortToggle");

      const compareBy = key => {
        return function(a, b) {
          if (sortToggle) {
            if (a[key] == null || a[key] == 0 || a[key] == "N/A") return 1;
            if (b[key] == null || b[key] == 0 || b[key] == "N/A") return -1;
            if (a[key] < b[key]) return -1;
            if (a[key] > b[key]) return 1;
            return 0;
          } else {
            // descneding
            if (a[key] == null || a[key] == 0 || a[key] == "N/A") return 1;
            if (b[key] == null || b[key] == 0 || b[key] == "N/A") return -1;
            if (a[key] > b[key]) return -1;
            if (a[key] < b[key]) return 1;
            return 0;
          }
        };
      };

      const sortedData = originalData.sort(compareBy(sortType));

      let arrowToggle;

      const prevArrowToggle = state.get("arrowToggle");

      if (prevArrowToggle == 0) {
        arrowToggle = -1;
      } else if (prevArrowToggle < 0) {
        arrowToggle = Math.abs(prevArrowToggle);
      } else if (prevArrowToggle > 0) {
        arrowToggle = prevArrowToggle * -1;
      }

      return state
        .set("mainData", fromJS(sortedData))
        .set("sortToggle", !sortToggle)
        .set("arrowToggle", arrowToggle)
        .set("sortType", sortType);
    }
  },
  initialState
);