---
class: ember
---
# StateChart
```hbs
<StateChart
@chart={{xstateStateChartObject}}
as |State Guard Action dispatch state|>
</StateChart>
```
`<StateChart />` is a renderless component that eases rendering of different states
from within templates using XState State Machine and Statechart objects.
### Arguments
| Argument/Attribute | Type | Default | Description |
| --- | --- | --- | --- |
| `chart` | `object` | | An xstate statechart/state machine object |
| `initial` | `String` | The initial value of the state chart itself | The initial state of the machine/chart (defaults to whatever is defined on the object itself) |
The component currently yields 3 conextual components:
- `<State />`: Used for rendering matching certain states ([also see State Component](../state/README.mdx))
- `<Action @name="" @exec={{action ""}} />`: Used to wire together ember actions to xstate actions.
- `<Guard @name="" @cond={{action ""}} />`: Used to wire together ember actions or props to xstate guards.
and 2 further objects:
- `dispatch`: An action to dispatch an xstate event
- `state`: The state object itself for usage in the `state-matches` helper
### Example
```hbs
<StateChart
@chart={{xstateStateChartObject}}
as |State Guard Action dispatch state|>
<Guard @name="nameOfGuard" @cond={{action "testGuardCondition"}} />
<Action @name="nameOfAction" @exec={{action "executeAction"}} />
<State @matches="idle">
Currently Idle
</State>
<State @matches="loading">
Currently Loading
</State>
<State @matches={{array 'loading' 'idle'}}>
Idle and loading
<button disabled={{state-matches state "loading"}} onclick={{action dispatch "START"}}>Load</button>
</State>
</StateChart>
```
### See
- [Component Source Code](./index.js)
- [Template Source Code](./index.hbs)
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