Overriding set-method in Backbone.js models

gistfile1.txt

    set: function(attrs, options) {
      _.each(attrs, function(val, key) { 
         if(!!this.validations[key])
           attrs[key] = this.filters[ this.validations[key].filter ](val);
      }, this);

      Backbone.Model.prototype.set.call(this, attrs, options);
      return this;
    },