> For the complete documentation index, see [llms.txt](https://dexiejs.typogram.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dexiejs.typogram.co/collection/collection.clone.md).

# Collection.clone()

#### Syntax

```javascript
collection.clone()
```

#### Return Value

Collection instance that derive from the original Collection via prototype. And manipulations on the returned Collection wont affect the original query.

#### Note

Does not clone the database contents, just object instance of the Collection object.

#### Sample

```javascript

db.transaction('r', db.friends, function* () {
    var collection = db.friends.where('age').above(75);

    // Manipulate further without affecting original query:
    var clone = collection.clone().reverse().limit(1);  

    // Execute un-manipulated original query:
    var allOldFriends = yield collection.toArray(); // Returns all old friends.

    // Execute cloned and manipulated query:
    var oldestFriend = yield clone.toArray(); // Returns just the oldest friend.

}).catch (e => {
    console.error(e.stack);
});
```