如何从javascript正则表达式中获取此URL的数字

Question

I have this url

http://nikerunning.nike.com/nikeplus/v2/services/app/run_list.jsp?userID=1413795052&startIndex=0&endIndex=-1&filterBy=all

I want to fetch 1413795052 number using regex in javascript, how can I achieve this?

Answer 1

var url = 'http://nikerunning.nike.com/nikeplus/v2/services/app/run_list.jsp?userID=1413795052&startIndex=0&endIndex=-1&filterBy=all';
var match = url.match(/userID=(\d+)/)
if (match) {
    var userID = match[1];
}

This matches the value of the userID parameter in the URL.

/userID=(\\d+)/ is a regex literal. How it works:

• The / are the delimiters, like " for strings
• userID= searches for the string userID= in url
• (\\d+) searches for one or more decimal digits and captures it (returns it)

Answer 2

try it right here in stackoverflow:

window.location.pathname.match(/questions\/(\d+)/)[1]
> "7331140"

or as an integer:

~~window.location.pathname.match(/questions\/(\d+)/)[1]
> 7331140

Answer 3

Try with:

var input = "http://nikerunning.nike.com/nikeplus/v2/services/app/run_list.jsp?userID=1413795052&startIndex=0&endIndex=-1&filterBy=all";

var id = parseInt( input.match(/userID=(\d+)/)[1] );

Answer 4

这将获取查询字符串中的所有数字：

window.location.search.match(/[0-9]+/);