voluptasmollitia/docs-exp/firestore_.loadbundletask.catch.md

Monorepo for the Firebase JavaScript SDK

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[Home](./index.md) &gt; [@firebase/firestore](./firestore.md) &gt; [/](./firestore_.md) &gt; [LoadBundleTask](./firestore_.loadbundletask.md) &gt; [catch](./firestore_.loadbundletask.catch.md)

## LoadBundleTask.catch() method

Implements the `Promise<LoadBundleTaskProgress>.catch` interface.

<b>Signature:</b>

```typescript
catch<R>(onRejected: (a: Error) => R | PromiseLike<R>): Promise<R | LoadBundleTaskProgress>;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  onRejected | (a: Error) =&gt; R \| PromiseLike&lt;R&gt; | Called when an error occurs during bundle loading. |

<b>Returns:</b>

Promise&lt;R \| [LoadBundleTaskProgress](./firestore_.loadbundletaskprogress.md)<!-- -->&gt;