Common mistakes in redux parts

1-wrong-action-handler-arg.js

const selectEntity = entityId => ({
  type: ENTITY_SELECT,
  entityId,
});

const onEntitySelect = {
  [ENTITY_SELECT]: (state, { id }) => state.set('id', id),
//                           ^
//                           oops, `entityId` was dispatched
};

2-wrong-state-property-name.js

// form state has `id` property
const formState = {
  id: null,
};

const onEntitySelect = {
  [UPDATE]: (state, { entityId }) => state.set('entityId', entityId),
//                                              ^
//                                              oops, state doesn't have `entityId`, but has `id`
};

3-wrong-selector.js

// state has `id` property
const formState = {
  id: null,
};

export const storeSelector = state => state.formStore;

export const idSelector = createSelector(
  storeSelector,
  store => store.get('entityId'),
//                    ^
//                    oops, state doesn't have `entityId`, but has `id`
);