> ## Documentation Index
> Fetch the complete documentation index at: https://errand.nuvrel.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# trimsuffix

> Remove a specific suffix from a string.

`trimsuffix(str, suffix)` returns `str` with the trailing `suffix` removed. If `str` does not end with `suffix`, it is returned unchanged.

## Signature

```
trimsuffix(str string, suffix string) string
```

## Example

Strip the trailing slash from a base URL variable so paths can be constructed consistently with a single slash separator:

```hcl theme={null}
variable "api_base_url" {
  description = "Base URL of the API (with or without trailing slash)"
  type        = string
  default     = "https://api.example.com/"
}

computed "api_url" {
  description = "Normalized API base URL without trailing slash"
  expression  = trimsuffix(var.api_base_url, "/")
}

task "health-check" {
  description = "Check the API health endpoint"
  commands    = ["curl -f ${computed.api_url}/health"]
}
```

`https://api.example.com/` becomes `https://api.example.com`.

## Notes

* Only the suffix at the end is removed. If the string ends with the suffix more than once, only one occurrence is removed.
* `trimsuffix` removes a literal string match, not individual characters. Use [`trim`](/functions/string/trim) for character-set stripping.