> For the complete documentation index, see [llms.txt](https://doc.sysdevmobile.com/kalipso/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.sysdevmobile.com/kalipso/documentation/actions/group-code-flow/debug.md).

# Debug

This action shows a string in the trace window. It is only for the simulator.

Action available for the following operating systems:

<figure><img src="https://1614058754-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FJ5vDGuBZwhJDeu5Rq7Wt%2Fuploads%2Fgit-blob-7a7ab3f3fc74afcaab1e0810f419316203cc49e1%2F01_Supported_OS.png?alt=media" alt="OS Supported: Android, iOS, Win, Win32"><figcaption></figcaption></figure>

### Parameters

* **Type** \<unquoted string>
  * **String Expression** - Shows the string specified in the **Expression** parameter.
  * **Numeric Expression** - Shows the number specified in the **Expression** parameter.
  * **Conditional Expression** - Shows the condition value specified in the **Expression** parameter.
  * **Global Variables** - Shows the content of the global variables.
  * **Local Variables** - Shows the content of the local variables from the current form.
  * **Temporary Variables** - Shows the content of the temporary variables from the current event.
* **Expression** \<string> - The expression to show when the **Type** parameter is **String Expression**, **Numeric Expression** or **Conditional Expression**.
* **Display** \<unquoted string> - When the **Type** parameter is set to show variables content, it specifies if it show show the content of all the variables or only of those with a value.

{% hint style="info" %}
This action will be ignored when you deploy your projects. It will only be used by the simulator when your are testing your projects with the Designer.
{% endhint %}