github.com/terramate-io/tf@v0.0.0-20230830114523-fce866b4dfcd/website/docs/language/functions/join.mdx (about)

     1  ---
     2  page_title: join - Functions - Configuration Language
     3  description: |-
     4    The join function produces a string by concatenating the elements of a list
     5    with a given delimiter.
     6  ---
     7  
     8  # `join` Function
     9  
    10  `join` produces a string by concatenating all of the elements of the specified
    11  list of strings with the specified separator.
    12  
    13  ```hcl
    14  join(separator, list)
    15  ```
    16  
    17  ## Examples
    18  
    19  ```
    20  > join("-", ["foo", "bar", "baz"])
    21  "foo-bar-baz"
    22  > join(", ", ["foo", "bar", "baz"])
    23  foo, bar, baz
    24  > join(", ", ["foo"])
    25  foo
    26  ```
    27  
    28  ## Related Functions
    29  
    30  * [`split`](/terraform/language/functions/split) performs the opposite operation: producing a list
    31    by separating a single string using a given delimiter.