layout	page_title	sidebar_current	description
functions	keys - Functions - Configuration Language	docs-funcs-collection-keys	The keys function returns a list of the keys in a given map.

`keys` Function

-> Note: This page is about Terraform 0.12 and later. For Terraform 0.11 and earlier, see 0.11 Configuration Language: Interpolation Syntax.

keys takes a map and returns a list containing the keys from that map.

The keys are returned in lexicographical order, ensuring that the result will be identical as long as the keys in the map don't change.

Examples

> keys({a=1, c=2, d=3})
[
  "a",
  "c",
  "d",
]