dispatch

What is dispatch for in Javascript?

for example:

 if(!tokenFromStorage){
          reject();  
        }
        dispatch(authSetToken(tokenfromStorage));
        resolve(tokenFromStorage);

bobbybouwmann

7 years ago

Level 88

Well it depends on the frontend framework you use, but in general it's for dispatching a certain event. So you can say "I have an event that's going to be fired" and somewhere you in your app you can catch this event and perform some action. That's what we call listeners.

In other ways with React for example it can be the redux-thunk library (a popular middleware for Redux). Basically dispatch is used as a callback which gets invoked once some async action is complete. In redux-thunk dispatch is simply a function which dispatches an action to the Redux store.

It can also be an own defined method that does something, IDK!

So it can be anything! We need more information to be specific here!

artcore

7 years ago

Level 5

Had to look it up too as you never know with js nowadays... dispatch() is from a 3rd party library, namely redux. It seems to be a callback for an async action.

https://stackoverflow.com/questions/42871136/dispatch-function-in-redux-react https://redux.js.org/api/store#dispatchaction

artcore

7 years ago

Level 5

Goedemorgen Bobby! I guess you didn't have to look it up first ;)

bobbybouwmann

7 years ago

Level 88

@artcore We're on the same page here ;) It's probably redux :D

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