--- page_title: startsswith - Functions - Configuration Language description: |- The startswith function takes two values: a string to check and a prefix string. It returns true if the string begins with that exact prefix. --- # `startswith` Function `startswith` takes two values: a string to check and a prefix string. The function returns true if the string begins with that exact prefix. ```hcl startswith(string, prefix) ``` ## Examples ``` > startswith("hello world", "hello") true > startswith("hello world", "world") false ``` ## Related Functions - [`endswith`](/packer/docs/templates/hcl_templates/functions/string/endswith) takes two values: a string to check and a suffix string. The function returns true if the first string ends with that exact suffix.