Why are Exception(s) excepted?

Q:
　何故，例外はmap<EventListener>を用いないのか．
　例外機構が局所的なEventListeningであることは論を俟たない．

A:
　例外機構は「後続の処理を行わずにlistenerをkickさせる」．

/**
 * When toss generate an Exception then throw it, smash won't be kicked.
 */
const doItStandard = () => {
  try {
    toss();
    smash();
  } catch (e) {
    console.log(e);
  }
}

/**
 * When toss generate CustomEvent: {type: 'exception arose'} then dispatch it to hoge, smash will be kicked.
 * [toss, smash] could generate CustomEvent: {type: 'exception arose'}.
 * [toss, smash] could dispatch CustomEvent: {type: 'exception arose'} to hoge
 */
const doItExtra = () => {
  hoge.addEventListner('exception arose', (e) => { console.log(e);  });
  toss();
  smash();
}