---
title: "is number · RUAL Documentation"
description: "RUAL condition block."
canonical: https://docs.rual.nl/block-types/condition/condition_is_number
language: en
---

# is number

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

- Value required `value` The value to be checked.

- condition `condition` The condition that tells if the given value is an number or not.

True when the value pin holds an actual numeric value; false for nil, missing, booleans, and strings - numeric text is never parsed. Example: value="5" -> false (string, not number).

A typical wiring for [is number](https://docs.rual.nl/block-types/condition/condition_is_number): the `condition` out pin feeds [branch](https://docs.rual.nl/block-types/flow/branch).

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

### Version history

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