gistfile1.js

__patchItemsProperty: function(excludeIds) {
                    if (!ko.isObservable(excludeIds)) {
                        throw new Error('Expected exclude ids to be observable array');
                    };

                    var self = this;
                    self.__updateFilesVisiblity(excludeIds());
                    ko.computed(function() {
                        self.__updateFilesVisiblity(excludeIds());
                    });
                },
                
                __updateFilesVisiblity: function(excludeIds) {
                    this.items.each(function (file) {
                        var shouldExclude = _.contains(excludeIds, file.Id());
                        file.visible(!shouldExclude);
                        if (shouldExclude) {
                            file.selected(false);
                        }
                    });
                }