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[`getAllTags`](getAllTags)
## getAllTags() function
Combines all tags from frontmatter and note content into a single array.
**Signature:**
```typescript
export function getAllTags(cache: CachedMetadata): string[] | null;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| <code>cache</code> | [`CachedMetadata`](CachedMetadata) | |
**Returns:**
`string[] | null`