如何从 Javascript 中的元素中删除单击事件？
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How can I remove a click event from an element in Javascript?
提问by Stewart Alan
I have a <div>element that has a click event attached to it using the following code:
我有一个<div>元素，它使用以下代码附加了一个点击事件：
var id = "someId";
var elem = document.getElementById("elemId");
elem.addEventListener("click", function() { someFunction(id); }, false);
At a later point I copy the element and add it to another part of the DOM, but need to first remove the clickevent
稍后我复制该元素并将其添加到 的另一部分DOM，但需要先删除该click事件
var elem = document.getElementById("elemId");
elem.removeEventListener("click", ???? , false);
I'm not sure how to reference the listener and so far nothing I have tried has removed the event from the element.
我不确定如何引用侦听器，到目前为止我没有尝试从元素中删除事件。
Any ideas?
有任何想法吗？
Cheers
干杯
Stewart
斯图尔特
采纳答案by KooiInc
Move the anonymous click handler function out of the addEventListenercall:
将匿名点击处理函数移出addEventListener调用：
var id = "someId";
var elem = document.getElementById("elemId");
var elemEventHandler = function() { someFunction(id); };
elem.addEventListener("click", elemEventHandler , false);
after which you should be able to:
之后你应该能够：
var elem = document.getElementById("elemId");
elem.removeEventListener("click", elemEventHandler , false);
