veritatisdoloremque/docs-exp/storage-types.uploadtask.cancel.md

Monorepo for the Firebase JavaScript SDK

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[Home](./index.md) &gt; [@firebase/storage-types](./storage-types.md) &gt; [UploadTask](./storage-types.uploadtask.md) &gt; [cancel](./storage-types.uploadtask.cancel.md)

## UploadTask.cancel() method

Cancels a running task. Has no effect on a complete or failed task.

<b>Signature:</b>

```typescript
cancel(): boolean;
```
<b>Returns:</b>

boolean

True if the cancel had an effect.