Backbone.js: Uncaught TypeError: Object [object Array] has no method 'set'

Question

I encountered the error I tried to use the reset method on one of my view's collection.

Here is its implementation

The collection:

window.Cards = Backbone.Collection.extend({
    model: Card,
    url: "/cards"
});

The router file:

var cardsList = new Cards();
cardsList.fetch({success: function(){
    filteredCards = cardsList.where({Class: "ABC"}).concat(cardsList.where({Class: "ZYX"}));
    this.deckbuild = new Deckbuilder({collection:filteredCards});
}});

In my Deckbuilder view file I created another view within it using the same collection:

var cardselectView = new CardSelect({collection: this.collection});

Then in the CardSelect view file I wrote:

blahblah = new Collection();
this.collection.set(blahblah);

Then the error appeared. Is there anything wrong this my implementation? Did I violate some abstraction? I can no longer use any of Backbone's collection method on my collection object anymore.

where, findWhere and bunch of methods return array not an instance of Backbone.Collection Please refer back to Backbone doc… backbonejs.org — j03w
– j03w, Commented Sep 7, 2013 at 9:46

Niranjan Borawake · Accepted Answer · 2013-09-07 11:02:43Z

1

In the router file, collection passed to the Deckbuilder view is an array and not Backbone.Collection. Try making below change :

this.deckbuild = new Deckbuilder({collection: new Cards(filteredCards)});

answered Sep 7, 2013 at 11:02

Niranjan Borawake

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