| --- |
| page_title: tolist - Functions - Configuration Language |
| description: The tolist function converts a value to a list. |
| --- |
| |
| # `tolist` Function |
| |
| `tolist` converts its argument to a list value. |
| |
| Explicit type conversions are rarely necessary in Terraform because it will |
| convert types automatically where required. Use the explicit type conversion |
| functions only to normalize types returned in module outputs. |
| |
| Pass a _set_ value to `tolist` to convert it to a list. Since set elements are |
| not ordered, the resulting list will have an undefined order that will be |
| consistent within a particular run of Terraform. |
| |
| ## Examples |
| |
| ``` |
| > tolist(["a", "b", "c"]) |
| [ |
| "a", |
| "b", |
| "c", |
| ] |
| ``` |
| |
| Since Terraform's concept of a list requires all of the elements to be of the |
| same type, mixed-typed elements will be converted to the most general type: |
| |
| ``` |
| > tolist(["a", "b", 3]) |
| [ |
| "a", |
| "b", |
| "3", |
| ] |
| ``` |
