# stepWorld

`import { stepWorld } from "destack:runtime";`

Advance one world by one debugger step.

```ds title="stepWorld"
export declare function stepWorld(world: WorldHandle): Result<ControlEvent, HostError>
```

[language/library/src/runtime/control.ds:57](https://github.com/destack-sh/destack/blob/main/language/library/src/runtime/control.ds#L57)