FAQ: Intro to the Core Redux API - Action Creators

This community-built FAQ covers the “Action Creators” exercise from the lesson “Intro to the Core Redux API”.

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why not simple use const decrement = { type: 'decrement' } ?

1 Like

Hey @arrayrunner06815,
In my openion, here we use functions to create action bojects, cause if we need to pass a payload property to the action object, then in diferent calls to store.dispatch(actionCreator()); we might need to pass different payload values.
If we use functions than we can simply pass that payload value to the function call as an argument.
In case of an object we will need to create different action objects for different senarios.
Hope this helps :smile:

Rather than having us repeat code with multiple dispatches (intentionally violating DRY), why not incorporate payloads here?

const increment = (numToIncreaseBy) => {
    return { type: 'increment', payload: numToIncreaseBy }}

const decrement = (numToDecreaseBy) => {
    return { type: 'decrement', payload: numToDecreaseBy }}

const initialState = 0;
const countReducer = (state = initialState, action) => {
  switch (action.type) {
    case 'increment':
      return state + action.payload;
    case 'decrement':
      return state - action.payload;
      return state;



1 Like

Why using a function and not directly an object?