First Paragraph Has an issue

I would consider revising the first paragraph.

Mainly this part:

> Isn’t it a bit strange? Why does the handler on <div> run if the actual click was on <em>?

It comes across as infantilizing and momentarily derailed my reading on a topic I was actually wanting to read about. It works well if your target audience is four to six year-olds.

Simply saying something like "this is because they are nested" or similar would do the trick.

I will concede that I am likely not the target audience. I saw the term bubbling, was unfamiliar with it, googled, saw right away from this article that it was talking about propagating events. I will still finish reading the article, since JavaScript is not my forte, but that line was a bit unexpected in an article at this level.

I will also note that the comments, overall, look to be positive, so the article is well received.

找到包含所引用第一段的教學文章，並閱讀其周圍關於 event bubbling 的說明。修改該段，直接解釋巢狀元素，不使用受到質疑的措辭，然後檢查文章是否仍然準確且易讀。

由索引模型根據 Issue 內容生成。