> For the complete documentation index, see [llms.txt](https://docs.incari.com/incari-studio/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.incari.com/incari-studio/2021.4/toolbox/events/variables.md).

# Variables

## Introduction

The **Variable Nodes** are **Event Listener Nodes** that allow a **Logic Branch** triggered by setting or changing the value of a **Variable** to execute. They are specific for each **Variable**.

## Contents

* [**On Variable Change**](/incari-studio/2021.4/toolbox/events/variables/on-variable-change.md)
* [**On Variable Set**](/incari-studio/2021.4/toolbox/events/variables/on-variable-set.md)