How to setup Ember like computed properties in Immutablejs and Redux and Flux and React

Question

I am used to computed properties in Ember Object Model. It\'s a convenient way to specify computed properties that depend on other properties.

Say fullName

Answer 1

What about something like this?

export const getWidgetsWithComputedProps = widgets => {
  return widgets.map(w => getWidgetWithComputedProps(w));
};

export const selectWidgetType = widget => {
  switch (widget.type) {
    case 'line':
      return 'time-series';
    case 'pie':
    case 'bar':
      return 'cross-sectional';
    default:
      console.warn('Back up: that type of widget does not exist!', widget.type);
      return null;
  }
};

export const getWidgetWithComputedProps = createSelector(
  widget => widget,
  selectWidgetType,
  (widget, _type) => {
    return {...widget, _type}
  }
);