[−][src]Function envmnt::get_any
pub fn get_any<K: AsRef<OsStr>>(keys: &Vec<K>, default_value: &str) -> String
Returns the first environment variable found.
Arguments
keys
- The environment variables to searchdefault_value
- In case the environment variables are not defined, this value will be returned.
Example
extern crate envmnt; fn main() { envmnt::set("MY_ENV_VAR2", "SOME VALUE2"); let value = envmnt::get_any(&vec!["MY_ENV_VAR1", "MY_ENV_VAR2"], "default"); assert!(!envmnt::exists("MY_ENV_VAR1")); assert!(envmnt::exists("MY_ENV_VAR2")); assert_eq!(value, "SOME VALUE2"); }