js如何解析html文本,用JS解析HTML文本 - Extra节点？每个人都有

我正在构建一个软件，它可以对给定的HTML文本进行一些文本解析，并且当我从HTML中保存所有段落时，我会找到一个额外的节点。

我创建了

Original content via JS:

从解析保存接收到的数据，并将其与使被解析的数据(原文)。

这是HTML代码：

Original content via JS:

Molly's Sheep

Molly had a little sheep.

Molly didn't like her sheep. Ir was too hairy.

So Molly took a big knife, and cut all of her sheep's fur.

Now Molly's sheep is cold.

But what Molly did not know, was that her sheep is a magical sheep;

Molly's sheep grows hair instantly, magically!

Oh, how wonderful, Molly's sheep,

Making hair, each and each

Hair grows quickly after cut,

That's what the story's all about.

这是解析代码：

var html_text_name = "original_text";

var html_text &