alone_ee

The simplest event emitter for rust

```rust fn main () { use aloneee::eventemitter::EventEmitter; let ee = EventEmitte::Stringr::new();

let subscription1 = ee.on(Box::new(|event_data| {  // listener will be alive till subscription is alive 
    // do something
    println!("hello {}", event_data);
    Ok(())
}));

let _subscription2 = ee.once(Box::new(|event_data| {   // listener will be alive till subscription is alive or next emit will fired
    // do something
    println!("hello {} one more time", event_data);
    Ok(())
}));

ee.emit("world1").unwrap();
ee.emit("world2").unwrap();

// you will see 
//     "hello world1"
//     "hello world1 one more time"
//     "hello world2"

drop(subscription1); // unbind the listener
// _subscription2 will be removed automatically

} ```

Testing

bash $ cargo test --release

Benchmark

bash $ cargo bench