# process.try_wait

## Function

Non-blocking check to see if the started child process has exited.

## Syntax

```bt
process(program).child().try_wait()
```

## Parameters

No parameters.

## Return value

| Type | Description |
| ------ | ------ |
| Int/Empty | Returns the exit code if exited; returns Empty if it is still running or has no child process handle. |

## Example

```bt
cmd = process('cmd')
result = cmd.try_wait()

// Output:
print result
```

## Notes

- try_wait does not block waiting for the process to end.