[−][src]Function envmnt::get_or
pub fn get_or<K: AsRef<OsStr>>(key: K, default_value: &str) -> String
Returns the environment variable value or if is not defined, the default value will be returned.
Arguments
key
- The environment variable namedefault_value
- In case the environment variable is not defined, this value will be returned.
Example
extern crate envmnt; fn main() { envmnt::set("MY_ENV_VAR", "SOME VALUE"); assert!(envmnt::is_equal("MY_ENV_VAR", "SOME VALUE")); let mut value = envmnt::get_or("MY_ENV_VAR", "DEFAULT_VALUE"); assert_eq!(value, "SOME VALUE"); value = envmnt::get_or("ANOTHER_ENV_VAR", "DEFAULT_VALUE"); assert_eq!(value, "DEFAULT_VALUE"); }