# upDownCounter

`import { upDownCounter } from "destack:telemetry";`

Create one up-down counter from the default meter.

```ds title="upDownCounter"
export function upDownCounter(name: string, unit?: string | undefined): UpDownCounter
```

[language/library/src/telemetry/metric.ds:188:190](https://github.com/destack-sh/destack/blob/main/language/library/src/telemetry/metric.ds#L188-L190)