如何在 之间提取文本

I must use jQuery for first time....

我必须第一次使用jQuery ....

<a class="Tag Resource" href="http://localhost/" 
resource="http://localres/" property="prop">test</a>

I've tried to extract the text using var = $('a').find('Tag Resource').text(); and var = $('a').find('Tag Resource').html(); but it doesn't work. I need "test" as plain text.

我试图使用var = $（'a'）提取文本.find（'Tag Resource'）。text（）;和var = $（'a'）。find（'标签资源'）。html（）;但它不起作用。我需要“测试”作为纯文本。

Can someone tell me how to do this?

谁能告诉我怎么做？

Thanks in advance

提前致谢

7 个解决方案

#1

I think you're looking for:

我想你正在寻找：

var t = $("a.Tag.Resource").text();

meaning a tags that have both the Tag and Resource classes. The find() method is for searching subtrees of elements.

表示同时具有Tag和Resource类的标记。 find（）方法用于搜索元素的子树。

#2

Here you go (live demo):

你去（现场演示）：

$(document).ready(
  function (){ 
    alert(  $('a.Tag.Resource').html()  );  
});

Your issue is either that you wanted one class but used a space so it became two; or that when referring to classes with a jquery selector, you need to prefix them with a period.

你的问题要么你想要一个班级但是使用了一个空间，所以它变成了两个;或者在使用jquery选择器引用类时，需要在它们前面添加句点。

In any case, the above code will help. If you really just wanted one class, change it to $('a.Tag-Resource')...

无论如何，上面的代码会有所帮助。如果你真的只想要一个课程，请将其改为$（'a.Tag-Resource'）...

#3

I think the problem is the syntax of your find expression.

我认为问题是你的find表达式的语法。

Update: In fact, you don't want find at all, you want filter. Find will only select descendants of the a elements, rather than the elements themselves.

更新：事实上，你根本不想查找，你想要过滤器。 Find只会选择a元素的后代，而不是元素本身。

I've tested the example line below.

我已经测试了下面的示例行。

From the example here, it looks like you want

从这里的例子看，它看起来像你想要的

var text = $('a').filter('.Tag.Resource').text();

#4

var text = "";
$("a").each(function(){
  text += $(this).html() + " " + $(this).attr("resource");
});
alert(text);

#5

I don't think you can have class names with spaces in. You've added 2 classes "Tag" and"Resource" to the a tag and your find selectory won't find that.

我不认为你可以使用带有空格的类名。你已经在a标签中添加了2个“Tag”和“Resource”类，你的find选择将找不到。

#6

Remember, class names can be repeated on a page, and spaces indicate two classes applied to an element. You are not guaranteed that a single element will have that class, so .text() may return the combined text of all matched elements.

请记住，类名可以在页面上重复，空格表示应用于元素的两个类。您不能保证单个元素将具有该类，因此.text（）可以返回所有匹配元素的组合文本。

$(".Tag.Resource").text();

#7

Well, you don't have to use JQuery...

好吧，你不必使用JQuery ......

var text, links = document.links;
for (var i = 0; i < links.length; i++) {
   if (links[i].className == 'Tag Resource') {
      text = links[i].innerText;
      break;
   }
}
alert(text);