如何将addEventListener函数的结果值外包出去？

// 使用回调函数
function handleEvent(event) {
  // 处理事件的结果值
  console.log(event.target.value);
}

function addEventListenerWithCallback(callback) {
  const element = document.getElementById('myElement');
  element.addEventListener('input', callback);
}

addEventListenerWithCallback(handleEvent);

// 使用自定义事件
function handleCustomEvent(event) {
  // 处理事件的结果值
  console.log(event.detail);
}

function addEventListenerWithCustomEvent() {
  const element = document.getElementById('myElement');
  element.addEventListener('input', function(event) {
    const customEvent = new CustomEvent('customInput', { detail: event.target.value });
    document.dispatchEvent(customEvent);
  });
}

document.addEventListener('customInput', handleCustomEvent);
addEventListenerWithCustomEvent();