Backbone.js - Models not being passed into view for template use -

i new @ backbone.js(and js in general) , have been experimenting storing model data in .json file. keep getting error:

uncaught typeerror: cannot call method 'tojson' of undefined  

caused by:

var questionview = backbone.view.extend({  tagname:"div", classname:"question-container",  initialize:function() {     _.bindall(this, "render");     console.log(this.model); //logs undefined models being fetched successfully?     console.log("questionview created");     this.render(); },  render: function() {     var data = this.model.tojson(); //this line throwing error     var source = $("#question-template").html();     var template = handlebars.compile(source);     $(this.el).html(template(data));     return this;    }      }); 

i can see in console models there don't understand i'm doing wrong.

in context:

$(function() {  //question model var question = backbone.model.extend({  initialize: function() {     console.log("question created"); },  defaults:{     number:"",     title:"",     answera:"",     answerb:"",     answerc:"",     answerd:"" }   });   //questions collection     var questions = backbone.collection.extend({  url:"data/questions.json",  model:question,  initialize: function() {     console.log(this); }  });  //question view var questionview = backbone.view.extend({  tagname:"div", classname:"question-container",  initialize:function() {     _.bindall(this, "render");     console.log(this.model);     console.log("questionview created");     this.render(); },  render: function() {     var data = this.model.tojson();     var source = $("#question-template").html();     var template = handlebars.compile(source);     $(this.el).html(template(data));     return this;    }    });   //questions view var questionsview = backbone.view.extend({  el:"#app-view",  initialize: function() {     console.log("questionsview created");     this.collection = new questions();     this.collection.fetch({reset:true});     this.collection.on('reset', this.render, this); },  render: function() {     var questionview = new questionview();     $(this.el).append(questionview);     return this; }  });   var questionsview = new questionsview();   }); 

you're not sending actual instance of model questionview. you'll need this:

render: function() {     var self = this;     _.each(this.collection, function(model) {         var questionview = new questionview({ model: model });         $(self.el).append(questionview);     });     return this; }