# dispatch

Send an update to store.

**@parameters**

| Name           | Type                | Description                                                                                                                                                                                        |
| -------------- | ------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| _**action**_   | `string`            | Action label.                                                                                                                                                                                      |
| _**newState**_ | `object` `function` | New state that will merge to current state. Exceeded properties are not restricted. If you use a function for this, it should be look like: `function (state) {...}`  and must return a new state. |

**@return**

| Type        | Description |
| ----------- | ----------- |
| `undefined` |             |

**Examples:**

```javascript
const store = new NgStore({foo: true});

// Get the latest value of foo
let foo = store.copy('foo');

// Toggle the foo from store
// {foo: false}
store.dispatch('TOGGLE_FOO', {foo: !foo});
```

Another option for updating the state is using function as second parameter, we can now omit the code from line 4 on the first example because the current state is already on the argument list of callback function.

```javascript
const store = new NgStore({foo: true});

// Toggle the foo from store
// {foo: false}
store.dispatch('TOGGLE_FOO', (state) => {
    return {foo: !state.foo};
});
```
