重新呈现视图后，event.currentTarget.innerHTML在IE10中为空

Question

Here is the JSBin Demo (Please test in Chrome and IE10 to see the difference) 这是JSBin演示（请在Chrome和IE10中测试以查看区别）

HTML HTML

<body>
  <div id='a'>
    <button>CLick me</button>
  </div>
</body>

JS JS

var markup = '<button>CLick me</button>';

$('#a').on('click', 'button', function() {
  $('#a').html(markup);
});

$('#a').on('click', 'button', function(event) {
  console.log(event.currentTarget.innerHTML); //.....(1)
});

Line (1) gives correct output in Chrome and Firefox while in IE10 I get empty string as the value of event.currentTarget.innerHTML . 第（1）行在Chrome和Firefox中提供正确的输出，而在IE10中，我得到空字符串作为event.currentTarget.innerHTML的值。 It only happens when div(#a) is rendered again. 它只会在div(#a)再次渲染时发生。

PS: I am using Backbone.js in which I re-rendered the view but to make question simpler, I have refined the problem to above mentioned by taking backbone out of picture. PS：我正在使用Backbone.js ，其中我重新渲染了视图，但为了使问题更简单，我已经通过将骨干取出图片来改进上面提到的问题。

Answer 1

I was curious so had a go. 我很好奇，所以有一个去。 This won't answer your question but might point in the right direction 这不会回答你的问题，但可能指向正确的方向

(1) In your example you replace a button with an identical button, if you replace it with different text you'll see in chrome that the innerHTML is actually the unreplaced text （1）在你的例子中，你用一个相同的按钮替换一个按钮，如果你用不同的文本替换它，你会在chrome中看到innerHTML实际上是未替换的文本

(2) In IE currentTarget is an empty button with no parent （2）在IE中， currentTarget是一个没有父项的空按钮

(3) It (sort of) works in IE and chrome if you do this: （3）如果你这样做，它（有点）适用于IE和chrome：

event.delegateTarget.children[0].innerHTML

(4) doc type makes no difference either way （4）doc类型无论如何都没有区别

So your answer will be in finding the difference between delegateTarget and currentTarget, or just using delegateTarget 所以你的答案是找到delegateTarget和currentTarget之间的区别，或者只是使用delegateTarget

重新呈现视图后，event.currentTarget.innerHTML在IE10中为空

问题描述

HTML HTML

JS JS

1 个解决方案

解决方案1
2 已采纳 2014-02-18 13:06:19

重新呈现视图后，event.currentTarget.innerHTML在IE10中为空

问题描述

HTML HTML

JS JS

1 个解决方案

解决方案1 2 已采纳 2014-02-18 13:06:19

解决方案1
2 已采纳 2014-02-18 13:06:19