javascript - How to pass a route parameter to the main View? -

i use simple router route page requests. start app instantiating bvapp.

recently, added in routing , use first parameter page1. how can pass parameter bvapp code.

i know should not pass in via constructor parameters allowed backbone uses _.pick. see here

can call method on bvapp perhaps?

i looked @ so post ideas after googled search pulled nothing obvious.

perhaps entry point application should not backbone view @ all?

// brmain var brmain = backbone.router.extend({     name: 'brmain',     routes: {         "*page1(/:supertag)(/:tag)": "main"     } });  var router = new brmain();  // matches //   domain.com //   domain.com#page1 //   domain.com#page1/supertag //   domain.com#page1/supertag/tag router.on('route:main', function (page1, supertag, tag) {     var app = $a.mod.add(new bvapp()); });  backbone.history.start();  // bvapp var bvapp = backbone.view.extend({     name: 'bvapp',     el: window,     initialize: function () {         var public_page = $a.reg.get('pub_req');         var token = storage.gettoken(); 

the initialize function takes optional options object, same object pass view's constructor.

router.on('route:main', function(page1, supertag, tag) {     // pass arguments inside object here     var app = $a.mod.add(new bvapp({         page: page1     })); });  var bvapp = backbone.view.extend({     name: 'bvapp',     el: window,     initialize: function(options) {         options = options || {};          // can use them here         this.page = options.page;     }  }); 

this not explained inside backbone's documentation, common pattern of objects. example, here's sample of backbone's view source.

var view = backbone.view = function(options) {     this.cid = _.uniqueid('view');     _.extend(this, _.pick(options, viewoptions));     this._ensureelement();      // lastly, call initialize passing arguments along     this.initialize.apply(this, arguments); }; 

in fact, arguments passed constructor in backbone passed along initialize function.