如何使用jQuery在HTML或XML文档中的两个标记之间查找和替换文本? [英] How to find and replace text in between two tags in HTML or XML document using jQuery?
问题描述
我想要在< title>内部找到并替换HTML文档中的文本,标签。例如,
I want to find and replace text in a HTML document between, say inside the <title> tags. For example,
var str = "<html><head><title>Just a title</title></head><body>Do nothing</body></html>";
var newTitle = "Updated title information";
我在jQuery中使用parseXML()(下面的示例),但它不工作: p>
I tried using parseXML() in jQuery (example below), but it is not working:
var doc= $($.parseXML(str));
doc.find('title').text(newTitle);
str=doc.text();
是否有其他方法可以在HTML标签中查找和替换文本?正则表达式或可能使用replaceWith()或类似的东西?
Is there a different way to find and replace text inside HTML tags? Regex or may be using replaceWith() or something similar?
推荐答案
我今天早些时候使用正则表达式做了类似的事情: / p>
I did something similar in a question earlier today using regexes:
str = str.replace(/<title>[\s\S]*?<\/title>/, '<title>' + newTitle + '<\/title>');
应该找到并替换它。 [\s\S] *?
意味着[包括空格和换行符的任何字符]任意次数,使星号不贪心,因此它会在找到< / title>
时停止(更快)。
That should find and replace it. [\s\S]*?
means [any character including space and line breaks]any number of times, and the ? makes the asterisk "not greedy," so it will stop (more quickly) when it finds </title>
.
这篇关于如何使用jQuery在HTML或XML文档中的两个标记之间查找和替换文本?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!