javascript - 如何删除元素中的所有侦听器？ [重复](How to remove all listeners in an element? [duplicate])

Question

This question already has an answer here:

(这个问题在这里已有答案：)

• Javascript/DOM: How to remove all events of a DOM object?

  (Javascript / DOM：如何删除DOM对象的所有事件？)

  9 answers

  (9个答案)

I have a button, and I added some eventlistners to it:

(我有一个按钮，我添加了一些eventlistners ：)

document.getElementById("btn").addEventListener("click", funcA, false);
document.getElementById("btn").addEventListener("click", funcB, false);
document.getElementById("btn").addEventListener("click", funcC, false);
document.getElementById("btn").addEventListener("blur" , funcD, false);
document.getElementById("btn").addEventListener("focus", funcE, false);

<button id="btn">button</button>

I can remove them by:

(我可以删除它们：)

document.getElementById("btn").removeEventListener("click",funcA);

What if I want I want to remove all listeners at once, or I don't have the function reference ( funcA )?

(如果我想要立即删除所有侦听器，或者我没有函数引用（ funcA ），该怎么办？)

Is there a way of doing that, or I have to remove them one by one?

(有没有办法做到这一点，或者我必须逐个删除它们？)

  ask by Derek 朕會功夫 translate from so