[Resolved] Unsubscribe from SubscribeToGlobalState

[carloscba]

Do you know any method to unsubscribe from SubscribeToGlobalState?

I've implemented in a react app:

const ReduxDemo = (): JSX.Element => {
  const [msg, setMsg] = useState('')
  const globalStore = GlobalStore.Get(true);

  const subscribeToGlobalStateHandler = (state) => {
    console.log('state', state);
  }

  useEffect(() => {
    globalStore.SubscribeToGlobalState("sandbox", subscribeToGlobalStateHandler);
  }, [])
  
  const dispatchInit = () => {
    globalStore.DispatchAction("sandbox", init(msg));
  }

  const msgHandler = (event) => {
    setMsg(event.target.value);
  }

  return (<>
    <h2>Redux</h2>
    <input type="text" value={ msg } onChange={msgHandler} /> 
    <button onClick= { dispatchInit }>Dispatch Init</button>
  </>);
};

When router returns to component a new subscriber is created.

result in console:

state {sandbox: {…}}
state {sandbox: {…}}
state {sandbox: {…}}

Fixed Code

useEffect(() => {
    const unsubscribe = globalStore.SubscribeToGlobalState("sandbox", subscribeToGlobalStateHandler);

    return (()=>{
      unsubscribe();
    })
  }, [])

[patrickCode]

Thanks for putting it here.