Function kankyo::key

pub fn key<T: AsRef<OsStr>>(name: T) -> Option<String>

Loads a key from the current environment. This is more or less an alias of std::env::var, but the benefit - slightly - is one less possible use statement.

Examples

Retrieve a key from the environment:

try!(kankyo::load(false));

if let Some(value) = kankyo::key("MY_KEY") {
    println!("The value of MY_KEY is: {}", value);
}