Backbone.js route optional parameter

Question

Is it possible to have optional parameters in a Backbone.js route?

e.g this:

routes:
  \"search/[:query]\": \"searchIndex\"

instead of:

Answer 1

Probably the most easiest way is just declare more than one route, one with the extra arg,one without:

routes:{
        "authProxy/:hash": "authProxy",                                                                                                                                                                 
        "authProxy/:hash/:url": "authProxy"
}

then just check for them in your method:

authProxy: function(hash, url){
    if (url){
      // Hash and URL.
    }else{
      // Just hash.
    }
}

Note that I like this much better than the other two answers because it's very easy for another developer to understand what's going on.