# metricsBindingOf

Canonical: https://docs.shumoku.dev/en/library/api/metricsBindingOf
Language: en

@shumoku/core · 0.4.0 · function

# metricsBindingOf

[Source](https://github.com/konoe-akitoshi/shumoku/blob/main/libs/@shumoku/core/src/observation/metrics-binding.ts#L26)

The metrics-binding attachment on an element, if any. When \`activeSourceIds\` is given, only a binding whose \`sourceId\` is active counts — so a binding left behind by a detached/removed metrics source stops driving the mapping.

```
metricsBindingOf(attachments: { kind: string }[] | undefined, activeSourceIds?: ReadonlySet<string>): MetricsBindingAttachment | undefined
```

## Parameters

| Parameter | Type | Description | Default |
| --- | --- | --- | --- |
| `attachments` | `{ kind: string }[] | undefined` | No additional description. | `—` |
| `activeSourceIds` | `ReadonlySet<string>` | No additional description. | `—` |

## Returns

```
MetricsBindingAttachment | undefined
```

[`libs/@shumoku/core/src/observation/metrics-binding.ts:26`](https://github.com/konoe-akitoshi/shumoku/blob/main/libs/@shumoku/core/src/observation/metrics-binding.ts#L26)