# Update the state

In AngularJS Store, the only way to update the state from the store is by dispatching an action. By using the `dispatch` method, you're also able to notify some parts of your application that uses the same store.

{% code title="your-controller.js" %}

```javascript
import { CounterStore } from 'counter-store';

function YourController(counterStore) {
  let currentState;

  currentState = counterStore.copy();
  counterStore.dispatch('INCREMENT_COUNT', {
    count: currentState.count + 1;
  });

  currentState = counterStore.copy();
  counterStore.dispatch('DECREMENT_COUNT', {
    count: currentState.count - 1;
  });
}

angular
  .module('App', [])
  .controller('YourController', YourController);
```

{% endcode %}

As you can notice in the above example, every time you perform an update to the state, you get the current state first because you used it for computation.

`dispatch` method has a simple way for that scenario that you can use.

{% code title="your-controller.js" %}

```javascript
import { CounterStore } from 'counter-store';

function YourController(counterStore) {
  counterStore.dispatch('INCREMENT_COUNT', (currentState) => {
    return { count: currentState.count + 1 };
  });

  counterStore.dispatch('DECREMENT_COUNT', (currentState) => {
    return { count: currentState.count - 1 };
  });
}

angular
  .module('App', [])
  .controller('YourController', YourController);
```

{% endcode %}


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