Aurelia messaging app

messageComposer.js

import {inject} from 'aurelia-framework';
import {EventAggregator} from 'aurelia-event-aggregator';

@inject(EventAggregator)
export class Messenger{

    constructor(eventAggregator){
        this.ea = eventAggregator; 
        this.message = "";
    }

    sendMessage(){
        this.ea.publish('new-message', this.message);
        this.message = "";
    }
}