Simple event system

Simple event system

let _callbacks = {};
const events = {
  on(name, cb) {
    _callbacks[name] = _callbacks[name] || [];
    _callbacks[name].push(cb);
  },
  dispatch(name, data) {
    setTimeout(function() {
      (_callbacks[name] || []).forEach(cb => cb(data));
    });
  }
}

events.on('hi', data => console.log(data));
events.dispatch('hi', 'hello');