javascript - Using Regex to parse a URI -


i'm using modenizr determine link serve users based on device of choice. if they're using mobile device want return uri if not return traditional url.

uri: spotify:album:1jcywzsn7jeve9xsq9buux

url: https://open.spotify.com/album/1jcywzsn7jeve9xsq9buux

right i'm using slice() retrieve last 22 characters of uri. though works i'd parse string via regex in event uri exceeds aforementioned character amount. best way string of characters after second colon of uri?

$(".spotify").attr("href", function(index, value) {   if (modernizr.touch) {     return value   } else {     return "https://open.spotify.com/album/" + value.slice(-22);   } });

regex appropriate task because quite simple, here's regex supports many : there , still work

/[\w\:]*\:(\w+)/

how works

[\w\:]* word characters (letters, numbers, underscore) , colons

\: tell previous thing stop @ colon. regex default greedy, means last colon

(\w+) select word characters , store in group can access it

use like:

var string = 'spotify:album:1jcywzsn7jeve9xsq9buux',     parseduri = string.match(/[\w\:]*\:(\w+)/)[1];

parseduri result

and can combine this:

var url = 'https://open.spotify.com/album/'+parseduri;

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