actionhandlers about redux-react-router-async-example HOT 2 CLOSED

from my undestanding : action creators trigger action handlers which are "state reducers"

the underscore is just a placeholder, by default its (state, action)

from redux-react-router-async-example.

@juanda99 basically it's how @revolunet said ;)

I can't get the meaning of actionHandlers, where is it from?

To explain it a bit more, reducers are functions that return a (new) state given some actions. Usually you probably do that with a switch case by checking the action.type. But you can also use a simple hash map with the action type as the key. This is what actionHandlers are and createReducer does (it's function composition).
As for the name "actionHandlers", as it implies it handles actions :)

No action creators?

On the other hand, action creators are functions that will eventually trigger an action, which will be then handled by the reducers.

What's the meaning of the underscore parameter _?

It's meant to be a placeholder since the argument it's not used in the related case, as you are interested in the second argument. But this is rather a personal choice, if it's less confusing to you simply declare the arguments with names as usual.

Hope this helps you further ;)

from redux-react-router-async-example.