Tibbr - Pattern for processing a large number of items without freezing the UI or causing long running script errors in IE

gistfile1.js

                    var arrayChunk = [],
                        //an array of models possibly with 100s or 1000s of items
                        //that need to be tranformed into views
                        combinedArray = users.models.concat( subjects.models).concat(broadcasts.models);

                    while( !_.isEmpty(combinedArray)){
                        //process 10 at a time
                        arrayChunk = combinedArray.splice(0, 10);
                        //wrapper around setTimeout 0 to defer execution to the end of the call stack
                        _.defer( function(chunk){
                            _.each(chunk, function(item){
                                $list.append( that.initChild( ListItem, {
                                    model: item,
                                    schedule: data
                                }).render().el);
                            });
                        }, arrayChunk);
                    }