RegEx - Get All Characters After Last Slash in URL

Question

I\'m working with a Google API that returns IDs in the below format, which I\'ve saved as a string. How can I write a Regular Expression in javascript to trim the string to

Answer 1

A slightly different regex approach:

var afterSlashChars = id.match(/\/([^\/]+)\/?$/)[1];

Breaking down this regex:

\/ match a slash
(  start of a captured group within the match
[^\/] match a non-slash character
+ match one of more of the non-slash characters
)  end of the captured group
\/? allow one optional / at the end of the string
$  match to the end of the string

The [1] then retrieves the first captured group within the match

Working snippet:

var id = 'http://www.google.com/m8/feeds/contacts/myemail%40gmail.com/base/nabb80191e23b7d9';

var afterSlashChars = id.match(/\/([^\/]+)\/?$/)[1];

// display result
document.write(afterSlashChars);