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opentf/website/docs/language/functions/list.html.md
2021-01-22 12:22:21 -08:00

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---
layout: "language"
page_title: "list - Functions - Configuration Language"
sidebar_current: "docs-funcs-collection-list"
description: |-
The list function constructs a list from some given elements.
---
# `list` Function
The `list` function is no longer available. Prior to Terraform v0.12 it was
the only available syntax for writing a literal list inside an expression,
but Terraform v0.12 introduced a new first-class syntax.
To update an expression like `list(a, b, c)`, write the following instead:
```
tolist([a, b, c])
```
The `[ ... ]` brackets construct a tuple value, and then the `tolist` function
then converts it to a list. For more information on the value types in the
Terraform language, see [Type Constraints](/docs/language/expressions/types.html).
## Related Functions
* [`concat`](./concat.html) produces a new list by concatenating together the
elements from other lists.
* [`tolist`](./tolist.html) converts a set or tuple value to a list.