---
page_title: alltrue function reference
description: |-
  The `alltrue` function returns `true` if all elements in a collection
  are `true`, `"true"`, or if the collection is empty. Learn how to use the `alltrue` 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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# `alltrue` Function

`alltrue` returns `true` if all elements in a given collection are `true`
or `"true"`. It also returns `true` if the collection is empty.

```hcl
alltrue(list)
```

## Examples

```command
> alltrue(["true", true])
true
> alltrue([true, false])
false
```

