javascript - 用JS解析HTML字符串(Parse an HTML string with JS)

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javascript - 用JS解析HTML字符串(Parse an HTML string with JS)

asked Feb 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

javascript - 用JS解析HTML字符串(Parse an HTML string with JS)

I searched for a solution but nothing was relevant, so here is my problem:

(我搜索了一个解决方案，但没有任何相关性，所以这是我的问题：)

I want to parse a string which contains HTML text.

(我想解析一个包含HTML文本的字符串。)

I want to do it in JavaScript.

(我想用JavaScript做。)

I tried this library but it seems that it parses the HTML of my current page, not from a string.

(我试过这个库，但它似乎解析了我当前页面的HTML，而不是字符串。)

Because when I try the code below, it changes the title of my page:

(因为当我尝试下面的代码时，它会更改我的页面标题：)

var parser = new HTMLtoDOM("<html><head><title>titleTest</title></head><body><a href='test0'>test01</a><a href='test1'>test02</a><a href='test2'>test03</a></body></html>", document);

My goal is to extract links from an HTML external page that I read just like a string.

(我的目标是从HTML外部页面中提取链接，就像字符串一样。)

Do you know an API to do it?

(你知道一个API来做吗？)

ask by stage translate from so

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1 Answer

深蓝 · Answer 1 · 2021-02-24T04:56:23+0000

Create a dummy DOM element and add the string to it.

(创建一个虚拟DOM元素并将字符串添加到它。)

Then, you can manipulate it like any DOM element.

(然后，您可以像任何DOM元素一样操纵它。)

var el = document.createElement( 'html' );
el.innerHTML = "<html><head><title>titleTest</title></head><body><a href='test0'>test01</a><a href='test1'>test02</a><a href='test2'>test03</a></body></html>";

el.getElementsByTagName( 'a' ); // Live NodeList of your anchor elements

Edit: adding a jQuery answer to please the fans!

(编辑：添加一个jQuery答案，以取悦粉丝！)

var el = $( '<div></div>' );
el.html("<html><head><title>titleTest</title></head><body><a href='test0'>test01</a><a href='test1'>test02</a><a href='test2'>test03</a></body></html>");

$('a', el) // All the anchor elements

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javascript - 用JS解析HTML字符串(Parse an HTML string with JS)

javascript - 用JS解析HTML字符串(Parse an HTML string with JS)

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