github.com/hugorut/terraform@v1.1.3/website/docs/language/functions/tolist.mdx (about)

     1  ---
     2  page_title: tolist - Functions - Configuration Language
     3  description: The tolist function converts a value to a list.
     4  ---
     5  
     6  # `tolist` Function
     7  
     8  `tolist` converts its argument to a list value.
     9  
    10  Explicit type conversions are rarely necessary in Terraform because it will
    11  convert types automatically where required. Use the explicit type conversion
    12  functions only to normalize types returned in module outputs.
    13  
    14  Pass a _set_ value to `tolist` to convert it to a list. Since set elements are
    15  not ordered, the resulting list will have an undefined order that will be
    16  consistent within a particular run of Terraform.
    17  
    18  ## Examples
    19  
    20  ```
    21  > tolist(["a", "b", "c"])
    22  [
    23    "a",
    24    "b",
    25    "c",
    26  ]
    27  ```
    28  
    29  Since Terraform's concept of a list requires all of the elements to be of the
    30  same type, mixed-typed elements will be converted to the most general type:
    31  
    32  ```
    33  > tolist(["a", "b", 3])
    34  [
    35    "a",
    36    "b",
    37    "3",
    38  ]
    39  ```