Get integer from a URL in Javascript

Question

I have a URL like this-

http‍://localhost/gtwhero/public/users/13/subscribers-lists/30/subscribers

So it's format is like this-

http‍://localhost/gtwhero/public/users/{user_id}/subscribers-lists/{list_id}/subscribers

I want to get the user_id and list_id from the URL.

So what I have done is

var a = parseInt("http://localhost/gtwhero/public/users/13/subscribers-lists/30/subscribers");

But as a result I am getting -

NaN

So, I think there must be another way of getting those two integers.

Can anyone please help?

Tushar · Accepted Answer · 2015-09-24 04:29:25Z

1

parseInt wont work in this case, it'll always return NaN as your string contains alphabets.

You need to use regex to extract the user id from URL

var url = 'http://localhost/gtwhero/public/users/13/subscribers-lists/30/subscribers';
var data = (url.match(/(\d+)/g) || []);

var userId = data[0],
  listId = data[1];

document.write("userId " + userId);
document.write("<br />listId " + listId);

Note: this will only work specifically for the above shown URLs, if URL contains other digits, it need to be used properly to extract intended ids.

edited Sep 24, 2015 at 4:29

answered Sep 24, 2015 at 4:11

Tushar

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