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# Method name: truncate(collectionId: string, options: WixDataOptions)

# Method package: wixData

# Method menu location: wixData --> truncate

# Method Link: https://dev.wix.com/docs/velo/apis/wix-data/truncate.md

# Method Description:

Removes all items from a collection.

The `truncate()` function returns a Promise that resolves
 after all items have been removed from the specified collection.

 `truncate()` runs when at least one of the following is true:

 + The current user is the site owner.
 + The request is performed in backend code with a `suppressAuth` options value of `true`.


 Calling the `truncate()` function does not trigger any hooks.

 > **Note:** `truncate()` also clears multiple-item reference fields in collections referenced by the specified collection.
 For example, suppose you have a **Movies** collection with an **Actors** field that contains multiple references
 to items in a **People** collection. Truncating the **Movies** collection also clears the data in the corresponding
 multiple-item reference field in the **People** collection.



# Method Code Examples:

*** Note: do not assume any prop names or enum values other than the ones in the example.

## Site owner removes all items from a collection

```javascript
import wixData from 'wix-data';

// ...

wixData.truncate("myCollection")
  .then(() => {
    console.log("All items removed");
  })
  .catch((err) => {
    console.log(err);
  });
```

## User who is not the site owner removes all items from a collection in the backend using data options

```javascript
import wixData from 'wix-data';

// ...

let options = {
  "suppressAuth": true
};

wixData.truncate("myCollection", options)
  .then(() => {
    console.log("All items removed");
  })
  .catch((err) => {
    console.log(err);
  });
```

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