javascript - 获取url中特定的数字字符串

Question

所以这里我们有一些来自同一域的网址:

http://example.com/video6757788/sometext 
http://example.com/video24353/someothertext  
http://example.com/video243537786/somedifferenttext  
http://example.com/video759882  
http://example.com/video64353415  
http://example.com/video342432?session=somestring 

如何获取所有类型的网址中视频后面的数字部分。我正在尝试获取视频 ID。

首先我获取 url，但是如何获取 id？

var url = $('a[href*="example"]');
var id = ???

Answer 1

使用正则表达式:

$('a[href*="example"]').each(function() {
   var $this = $(this);
   var url = $this.attr("href");
   var id = url.match(/video(\d+)/i)[1]; //retrieve the number following video*
   //logic
})

或者如果你想成为fancy with .attr() ，等价于:

 $('a[href*="example"]').attr("href", function(indx, url) {
   var id = url.match(/video(\d+)/i)[1]; //retrieve the number following video*
   //logic
})