---
title: "is empty · RUAL Documentation"
description: "Checks if the given field is empty."
canonical: https://docs.rual.nl/block-types/state ui/state_is_empty
language: en
---

# is empty

This block is part of the [`state ui`](https://docs.rual.nl/block-types/state%20ui) group and was last modified in core [`v10.4.28`](https://docs.rual.nl/core-versions/100428).

### Field Selection Required

This block relies on a field that you select to perform its data actions. You must manually select the field you want to use in your flow using the field selector modal. To access the modal, click the white button on the block.

Checks if the given field is empty.

- condition `condition` Returns `true` if the given field is empty.

A typical wiring for [is empty](https://docs.rual.nl/block-types/state%20ui/state_is_empty): the `condition` out pin feeds [branch](https://docs.rual.nl/block-types/flow/branch).

![Studio canvas example for the is empty block: typical wiring for is empty.](https://docs.rual.nl/canvas-examples/state_is_empty.png)

### Version history

Introduced in [`v10.4.28`](https://docs.rual.nl/core-versions/100428).