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

---
page_title: reverse function reference
description: The `reverse` function reverses the values in a sequence. Learn how to use the `reverse` function in Packer templates. 
---

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> [!IMPORTANT]  
> **Documentation Update:** Product documentation previously located in `/website` has moved to the [`hashicorp/web-unified-docs`](https://github.com/hashicorp/web-unified-docs) repository, where all product documentation is now centralized. Please make contributions directly to `web-unified-docs`, since changes to `/website` in this repository will not appear on developer.hashicorp.com.
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# `reverse` Function

`reverse` takes a sequence and produces a new sequence of the same length
with all of the same elements as the given sequence but in reverse order.

## Examples

```shell-session
> reverse([1, 2, 3])
[
  3,
  2,
  1,
]
```

## Related Functions

- [`strrev`](/packer/docs/templates/hcl_templates/functions/string/strrev) reverses a string.