opentf/website/docs/language/functions/concat.html.md

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language	concat - Functions - Configuration Language	docs-funcs-collection-concat	The concat function combines two or more lists into a single list.

concat Function

concat takes two or more lists and combines them into a single list.

Examples

> concat(["a", ""], ["b", "c"])
[
  "a",
  "",
  "b",
  "c",
]