@userfrosting/merge-package-dependencies/docs/api/merge-package-dependencies.yarnisflat.md

Merge NPM, Yarn or Bower package dependencies into one package, with semver rules respected.

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## yarnIsFlat() function

Uses `yarn.lock` to detect if multiple versions of a dependency have been installed.

<b>Signature:</b>

```typescript
export declare function yarnIsFlat(p?: string, log?: LogOption): boolean;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  p | string | Directory of <code>yarn.lock</code>. |
|  log | [LogOption](./merge-package-dependencies.logoption.md) | If true, progress and errors will be logged. Has no affect on exceptions thrown. |

<b>Returns:</b>

boolean