javascript - How do I fetch a single model in Backbone? -

i have clock model in backbone:

var clock = backbone.model.extend({}); 

i'm trying instance of that has latest information /clocks/123. things i've tried:

a "class"-level method

clock.fetch(123) // typeerror: object function (){ ... } has no method 'fetch' 

creating instance , calling fetch on it:

c = new clock({id: 123}) c.fetch() // error: 'url' property or function must specified 

a collection

i tried creating allclocks collection resource (even though have no use such thing on page):

var allclocks = backbone.collection.extend({   model: clock,   url: '/clocks/' }); var allclocks = new allclocks(); allclocks.fetch(123); // returns /clocks/ 

how one api-backed clock?

your second approach approach have used. try adding following clock model:

url : function() {   var base = 'clocks';   if (this.isnew()) return base;   return base + (base.charat(base.length - 1) == '/' ? '' : '/') + this.id; }, 

this approach assumes have implemented controllers hashbang in url so, http://www.mydomain.com/#clocks/123 , should work if haven't yet.