# Available cart item filters

> When you [create a cart item filter][create-cif], the available filters appear sorted by the following categories:

> For the complete documentation index, see [llms.txt](https://docs.talon.one/llms.txt).

- [Filter & sort](#filter--sort)
- [Select](#select)
- [Calculate](#calculate)
- [Check](#check)

## Filter & sort

|          Filter name          |                                Description                                | Result |
| ----------------------------- | ------------------------------------------------------------------------- | ------ |
| **Filter items by conditions** | Filters items by the value of a certain attribute, such as price or name. You can also filter items based on whether a given custom attribute exists. | List   |
| **Sort items by attribute**   | Sorts items in descending or ascending order.                             | List   |

## Select

|            Filter name            |                                   Description                                    |  Result   |
| --------------------------------- | -------------------------------------------------------------------------------- | --------- |
| **Select the first No. of items** | Selects the first items from a list. You can choose how many items are selected. | List      |
| **Select one item**               | Selects one item at the position of your choice in a list.                       | Cart item |
| **Select by attribute value**     | Creates a list by selecting those items matching a certain attribute.            | List      |
| **Select the biggest number**     | Selects the biggest number out of a list of numbers.                             | Number    |
| **Select the smallest number**    | Selects the smallest number out of a list of numbers.                            | Number    |

## Calculate

|                Filter name                 |                                             Description                                             | Result |
| ------------------------------------------ | --------------------------------------------------------------------------------------------------- | ------ |
| **Sum up cart items' attributes**          | Defines a mathematical operation to be performed on each cart item and gets the sum of each result. | Number |
| **Sum up these numbers**                   | Sums up the numbers returned by a previous filter step.                                             | Number |

## Check

|        Filter name        |            Description             | Result  |
| ------------------------- | ---------------------------------- | ------- |
| **Check for empty lists** | Indicates whether a list is empty. | Boolean |

## Related page

- [Manage Application cart item filters][app-cif]

[app-cif]: /docs/product/applications/manage-application-cart-item-filters.md
[create-cif]: /docs/product/rules/cart-item-filters/manage-cart-item-filters.md#create-a-cart-item-filter