terraform/website/docs/language/functions/contains.mdx

---
page_title: contains - Functions - Configuration Language
description: The contains function determines whether a list or set contains a given value.
---

# `contains` Function

`contains` determines whether a given list or set contains a given single value
as one of its elements.

```hcl
contains(list, value)
```

## Examples

```
> contains(["a", "b", "c"], "a")
true
> contains(["a", "b", "c"], "d")
false
```
website: Document the remaining "collection" functions This also renames some of the existing function pages whose source filenames were not matching the usual naming scheme (.html.md). 2018-05-12 18:39:29 +02:00			`---`
migrate docs to mdx 2021-12-15 03:41:17 +01:00			`page_title: contains - Functions - Configuration Language`
			`description: The contains function determines whether a list or set contains a given value.`
website: Document the remaining "collection" functions This also renames some of the existing function pages whose source filenames were not matching the usual naming scheme (.html.md). 2018-05-12 18:39:29 +02:00			`---`

			# `contains` Function

lang/funcs: remove sethaselement function and documentation (#21164) `contains` and `sethaselement` are effectively the same function, and `contains` works with `sets` thanks to automatic HCL conversion. 2019-05-02 16:47:19 +02:00			`contains` determines whether a given list or set contains a given single value
website: Document the remaining "collection" functions This also renames some of the existing function pages whose source filenames were not matching the usual naming scheme (.html.md). 2018-05-12 18:39:29 +02:00			`as one of its elements.`

			```hcl
			`contains(list, value)`
			```

			`## Examples`

			```
			`> contains(["a", "b", "c"], "a")`
			`true`
			`> contains(["a", "b", "c"], "d")`
			`false`
			```