29 lines
623 B
Plaintext
29 lines
623 B
Plaintext
---
|
|
page_title: index - Functions - Configuration Language
|
|
sidebar_title: index
|
|
description: The index function finds the element index for a given value in a list.
|
|
---
|
|
|
|
# `index` Function
|
|
|
|
`index` finds the element index for a given value in a list.
|
|
|
|
```hcl
|
|
index(list, value)
|
|
```
|
|
|
|
The returned index is zero-based. This function produces an error if the given
|
|
value is not present in the list.
|
|
|
|
## Examples
|
|
|
|
```shell-session
|
|
> index(["a", "b", "c"], "b")
|
|
1
|
|
```
|
|
|
|
## Related Functions
|
|
|
|
- [`element`](//docs/templates/hcl_templates/functions/collection/element) retrieves a particular element from a list given
|
|
its index.
|