How to use # as part of CoffeeScript heregex?

Question

I\'m trying to match the hash fragment of a jQuery Mobile URL like this:

    matches = window.location.hash.match ///
        #                   # we\'re in         


        

Answer 1

Implementer here. Heregex comments are removed altogether with whitespace using a simple regex (/\s+(?:#.*)?/g), so any non-whitespace character before # (or placing it at the very beginning) works.

$ coffee -bcs
  /// [#] ///                      
  /// (?:#) ///
  ///#///       

// Generated by CoffeeScript 1.2.1-pre
/[#]/;

/(?:#)/;

/#/;