Learning Redux

Testing out the full reducer

After combining our reducers, we can test them out by calling the appReducer:

1. First, we will initialize the reducers by passing an undefined state:

let state = appReducer(undefined, { type: 'INIT_ACTION' })console.log('initial state:', state)

The resulting initial state looks as follows:

{  "posts": [],  "filter": "all"}

2. Then, we will dispatch some actions by manually passing the current state and the action object to the appReducer function. We will start with a createPost action:

state = appReducer(state, createPost('dan', 'test'))console.log('state after createPost:', state)

The state now looks like this:

{  "posts": [    {      "user": "dan",      "text": "test"    }  ],  "filter": "all"}

3. Then, we will edit the text of that ...