JQuery 如何从href 标签中提取值？
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JQuery How to extract value from href tag?
提问by Malcolm
I am new to JQuery.
我是 JQuery 的新手。
If I have the following tag. What is the best JQuery method to extract the value for "page" from the href.
如果我有以下标签。从 href 中提取“页面”值的最佳 JQuery 方法是什么？
<a href="Search/Advanced?page=2">2</a>
Malcolm
马尔科姆
回答by Matchu
The first thing that comes to my mind is a one-liner regex:
我想到的第一件事是单行正则表达式：
var pageNum = $("#specificLink").attr("href").match(/page=([0-9]+)/)[1];
回答by Kenny Eliasson
I see two options here
我在这里看到两个选项
var link = $('a').attr('href');
var equalPosition = link.indexOf('='); //Get the position of '='
var number = link.substring(equalPosition + 1); //Split the string and get the number.
I dont know if you're gonna use it for paging and have the text in the <a>-tag as you have it, but if you should you can also do
我不知道你是否要使用它进行分页并将文本放在<a>-tag 中，但如果你应该这样做，你也可以这样做
var number = $('a').text();
回答by Peter ?rneholm
First of all you need to extract the path with something like this:
首先，您需要使用以下内容提取路径：
$("a#myLink").attr("href");
Then take a look at this plugin: http://plugins.jquery.com/project/query-object
然后看看这个插件：http: //plugins.jquery.com/project/query-object
It will help you handle all kinds of querystring things you want to do.
它将帮助您处理您想做的各种查询字符串。
/Peter F
/彼得F
回答by great_llama
Here's a method that works by transforming the querystring into JSON...
这是一种通过将查询字符串转换为 JSON 来工作的方法......
var link = $('a').attr('href');
if (link.indexOf("?") != -1) {
var query = link.split("?")[1];
eval("query = {" + query.replace(/&/ig, "\",").replace(/=/ig, ":\"") + "\"};");
if (query.page)
alert(unescape(query.page));
else
alert('No page parameter');
} else {
alert('No querystring');
}
I'd go with a library like the others suggest though... =)
我会像其他人建议的那样去图书馆...... =）
回答by joaquim machado
if ($('a').on('Clicked').text().search('1') == -1)
{
//Page == 1
}
else
{
//Page != 1
}
