使用 RegEx 从 url 获取数据

Question

我有页面上的博文链接列表

<ul class="postlist">
<li><a href="http://someblog.it/blogpost/7/-----.aspx">Post One</a></li>
<li><a href="http://someblog.it/blogpost/32/----------.aspx">Post Two</a></li>
<li><a href="http://someblog.it/blogpost/382/-----.aspx">Post Three</a></li>
<li><a href="http://someblog.it/blogpost/5782/-----------.aspx">Post Four</a></li>
<li><a href="http://someblog.it/blogpost/11682/-----------.aspx">Post Five</a></li>
</ul>

并希望从此网址获取斜线之间的所有数字的数组

$('a').each(function (index){
    var str = $(this).attr('href');
    var a = str.search(/[0-9]+/);
    var b = str.search(/-);
    console.log(str.substring(a,b));
});

smth like 7, 32, 382,​​ 5782, 11682

http://jsfiddle.net/sYH56/

Answer 1

像这样 -

var arr = $('a').map(function (index){
   var str = $(this).attr('href');
   var a = str.search(/[0-9]+/);
   var b = str.search(/\/-/);
   return str.substring(a,b);
}).get().join(',');

http://jsfiddle.net/sYH56/3/