gistfile1.js

var PopularAssetsFilter = Chute.Data.Filter.extend({
  initialize: function(data) {
    this.data = data; // saving reference to Chute.Data object
    this.filter();
  },
  
  filter: function() {
    var assets = this.data;
    
    var popularAssets = _.filter(assets, function(asset){
      return asset.hearts > 10;
    });
    
    this.done(popularAssets);
  }
});

var BrokenAssetsFilter = Chute.Data.Filter.extend({
  initialize: function(data) {
    this.data = data;
    this.filter();
  },
  
  filter: function() {
    var self = this,
        assets = [];
    
    async.forEach(this.data, function(asset, nextAsset){
      var image = new Image;
      
      image.onload = function(){
        assets.push(asset);
        nextAsset();
      };
      
      image.onerror = function(){ nextAsset(); };
      
      image.src = asset.url;
    }, function(){
      self.done(assets);
    });
  }
});

var assets = new Chute.API.Assets({ album: 'ALBUM_SHORTCUT' }).toData({ filters: [PopularAssetsFilter, BrokenAssetsFilter] });

assets.on('data:load', function(){
  var items = assets.items();
  
  // Ready to use filtered assets, ready data set
});

assets.load();