A simple example of JavaScript CustomEvent

Javascript CustomEvent Example.js

const event_target = new EventTarget();

event_target.addEventListener('asuna_yuuki', event => console.log(event.detail));
event_target.addEventListener('rize_kamishiro', event => console.log(event.detail));

event_target.dispatchEvent(
  new CustomEvent('asuna_yuuki', {
    detail: {
      data: 'Asuna Yuuki',
    },
  })
);

event_target.dispatchEvent(
  new CustomEvent('rize_kamishiro', {
    detail: {
      data: 'Rize Kamishiro',
    },
  })
);