如何将jQuery元素选择应用于字符串变量 [英] how to apply jQuery element selection to a string variable

问题描述

我有一些html提取到字符串var，然后想要仅在该字符串上使用jQuery元素选择.这可能吗?

I have some html extracted to a string var, and want to then use jQuery element selection just on that string. Is this possible?

例如:

HTML:

<div class=message>
  This is a message. Click <a class=link id=link1 href=example.com>here</a>
</div>

jQuery:

$('div.message').each(function(i, item) {
  myHtml = $(this).html();
  //select <a> tag attributes here
)};

因此在此示例中，我想从myHtml中的<a>标记中提取id和href.

So in this example, I want to extract the id and href from the <a> tag in myHtml.

谢谢

推荐答案

如果我正确理解，您在字符串变量中包含HTML代码，并希望在其中进行查询?

If I understand correctly, you have HTML code in a string variable, and want to query within that?

// Suppose you have your HTML in a variable str
var str = '<div class="message">This is a message. Click '
        + '<a class="link" id="link1" href="example.com">here</a></div>​​​​​​​​​​​​​​​';

// You query the DOM fragment created by passing the string to jQuery function.
// $(<string>) - creates a DOM fragment (string must contain HTML)
var anchor = $('a', $(str));

// Then you can retrieve individual properties and/or contents:
var id = anchor.attr('id');
var href = anchor.attr('href');
var text = anchor.text();

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