packer/website/content/docs/templates/hcl_templates/functions/collection/compact.mdx

---
page_title: compact function reference
description: The `compact` function removes empty string elements from a list. Learn how to use the `compact` function in Packer templates.
---

# `compact` Function

`compact` takes a list of strings and returns a new list with any empty string
elements removed.

## Examples

```shell-session
> compact(["a", "", "b", "c"])
[
  "a",
  "b",
  "c",
]
```