30秒学会 JavaScript 片段 – Add event listener to all targets

Attaches an event listener to all the provided targets.

• Use Array.prototype.forEach() and EventTarget.addEventListener() to attach the provided listener for the given event type to all targets.

代码实现

const addEventListenerAll = (targets, type, listener, options, useCapture) => {
  targets.forEach(target =>
    target.addEventListener(type, listener, options, useCapture)
  );
};

addEventListenerAll(document.querySelectorAll('a'), 'click', () =>
  console.log('Clicked a link')
);
// Logs 'Clicked a link' whenever any anchor element is clicked

翻译自：https://www.30secondsofcode.org/js/s/add-event-listener-all